US Patent Class 33
GEOMETRICAL INSTRUMENTS



Electronic
File
Wrappers

Electronic
Patent
Documents

Paper
Patent
Documents

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services

  DF  CLASS NOTES
1 R  DF  MISCELLANEOUS
1 A  DF  .~ Aerial photo
1 B  DF  .~ Printed sheet
1 C  DF  .~ Curve and chart analysis
1 D  DF  .~ Indexing and verniers
1 E  DF  .~ Dip and strike
1 F  DF  .~ Article subdividing
1 G  DF  .~ Layout
1 H  DF  .~ Earth
1 K  DF  .~ Copy aids and perspective drawing
1 M  DF  .~ X-Y motion
1 N  DF  .~ Angular measurement
1 L  DF  .~ Optical readout
1 P  DF  .~ Sonic wave
1 Q  DF  .~ Railroad
1 S  DF  .~ Statistical measurements
1 T  DF  .~ Theodolite-optical readout
1 V  DF  .~ Volume measurement
1 AA  DF  .~ Tables-layout
1 BB  DF  .~ Inspection
1 CC  DF  .~ Remote point locating
1 DD  DF  .~ Light direction
1 HH  DF  .~ Seismic
1 LE  DF  .~ Line engaging
1 MP  DF  .~ Multipolar
1 SP  DF  .~ Radius and spiral
1 PT  DF  .~ Angular position transducer
1 AP  DF  .~ Angle polysection
1 SB  DF  .~ Simulating calculators
1 SA  DF  .~.~ Spherical
1 SC  DF  .~.~ Astronomical
1 SD  DF  .~.~ Flat multisheet
1 CF  DF  .~ Character forming
2 R  DF  APPAREL
3 R  DF  .~ Footwear
4  DF  .~.~ Laying out
5  DF  .~.~.~ Patterns
6  DF  .~.~ Processes
3 A  DF  .~.~ Single measuring or indicating means
3 B  DF  .~.~ Multiple indicating means, independent
3 C  DF  .~.~ Multiple indicating means interconnected
7  DF  .~ Leveling features
8  DF  .~ Stand supported
9 R  DF  .~.~ Skirts
10  DF  .~.~.~ Platform
9 A  DF  .~.~.~ Powder-marking
11  DF  .~ Laying out
12  DF  .~.~ Patterns and charts
13  DF  .~.~.~ Perforated
14  DF  .~.~.~ Adjustable
15  DF  .~.~.~.~ Conforming
16  DF  .~.~ Adjustable
17 R  DF  .~ Processes
17 A  DF  .~.~ Pattern grading
2 H  DF  .~ Hems and cuffs
2 A  DF  .~ Stocking gauge
18.1  DF  SCRIBER
18.2  DF  .~ Writing
18.3  DF  .~ Perspective drawing
19.1  DF  .~ Graduating
19.2  DF  .~.~ Straight-line
19.3  DF  .~.~ Circular
20.1  DF  .~ Sight-line controlled
20.2  DF  .~.~ Course tracking
20.3  DF  .~.~ Perspective view tracing
20.4  DF  .~.~ Stereoscopic mapping
21.1  DF  .~ Curved surface
21.2  DF  .~.~ Spherical
21.3  DF  .~.~ Pipe junction
21.4  DF  .~.~ Tumbler engraving
22  DF  .~.~ Pantographic
23.01  DF  .~ Pantographic
23.02  DF  .~.~ Single beam
23.03  DF  .~.~ Superposed carriages
23.04  DF  .~.~ Sliding pivot
23.05  DF  .~.~ Opposite replica
23.06  DF  .~.~ Plural reproduction
23.07  DF  .~.~ Pattern grading
23.08  DF  .~.~ Pattern follower
23.09  DF  .~.~ Human form
23.1  DF  .~.~ Telautograph
23.11  DF  .~.~ Template and stylus details
24.1  DF  .~.~ Multiplane
24.2  DF  .~.~.~ Pendulum
24.3  DF  .~.~.~ Coaxial styli
25.1  DF  .~.~ Parallelogram type
25.2  DF  .~.~.~ Simple parallelogram
25.3  DF  .~.~.~ Universally parallel bar
25.4  DF  .~.~.~ Progressive lettering
25.5  DF  .~.~.~ Tandem pantographs
26  DF  .~ Compound curved and straight-line
27.01  DF  .~ Curved line
27.02  DF  .~.~ Compass
27.03  DF  .~.~.~ Beam type
27.031  DF  .~.~.~ With scoring means
27.032  DF  .~.~.~.~ Including scale
27.033  DF  .~.~.~.~ With screw adjustment means
27.04  DF  .~.~ Circle forming frame support
27.05  DF  .~.~ Circle forming roller
27.06  DF  .~.~ Circle forming pin and jointed arm
27.07  DF  .~.~ Circle forming rotating table
27.08  DF  .~.~ Conic section
27.09  DF  .~.~ Spiral
27.1  DF  .~.~ Sine curve
27.11  DF  .~.~ Rose engine
27.12  DF  .~.~ Pattern follower
28  DF  .~.~ Lens
29  DF  .~.~ Stair
30.1  DF  .~.~ Ellipsograph
30.2  DF  .~.~.~ Pivoted circular pattern
30.3  DF  .~.~.~ Pattern follower
30.4  DF  .~.~.~ Harmonic component
30.5  DF  .~.~.~ Flexible cord type
30.6  DF  .~.~.~ Sliding leg
30.7  DF  .~.~.~ Planetary scriber arm
31  DF  .~.~.~ Right-angle guides
32.1  DF  .~ Straight-line
32.2  DF  .~.~ Portable
32.3  DF  .~.~ Moving scriber
32.4  DF  .~.~.~ And sheet
32.5  DF  .~.~ Stationary scriber and moving support or sheet
32.6  DF  .~.~.~ Moving sheet
32.7  DF  .~.~ Sheet support and handling details
33  DF  .~.~ Clapboard
34  DF  .~.~ Ink
35  DF  .~.~.~ Traveling markers
36  DF  .~.~.~.~ Rotary
37  DF  .~.~.~ Rotary markers
38  DF  .~.~.~.~ Blank space
39.1  DF  .~.~.~ Blank space
39.2  DF  .~.~.~.~ Hand pen
40  DF  .~.~ Set shift
41.1  DF  .~ Parallel line
41.2  DF  .~.~ Lettering guide
41.3  DF  .~.~ Rotary marker
41.4  DF  .~.~ Multi-marking
41.5  DF  .~.~ Profile tracing
41.6  DF  .~.~ Single marker with spacing guide
42  DF  .~.~ Edge guided
43  DF  .~.~.~ Bevel set
44  DF  .~.~.~ Multimarkers
45  DF  .~.~ Machine type
227  DF  STRAIGHT-LINE LIGHT RAY TYPE
228  DF  .~ Process
229  DF  .~ Aerial bomb sight
230  DF  .~.~ Gyroscopically stabilized
231  DF  .~.~ With ground speed indicator
232  DF  .~ Marine or aircraft ground speed indicator
233  DF  .~ Gun sight
234  DF  .~.~ Bore type
235  DF  .~.~ Ordnance
236  DF  .~.~.~ Gyroscopically stabilized
237  DF  .~.~.~ Self adjusting gun movement compensator
238  DF  .~.~.~.~ Compensates for moving target
239  DF  .~.~.~.~.~ And moving craft or gun platform
240  DF  .~.~.~.~ Compensates for trunnion tilt
241  DF  .~.~ Illuminated or luminescent
242  DF  .~.~ Critical material
243  DF  .~.~.~ Colored
244  DF  .~.~ Hood or cover
245  DF  .~.~ Telescopic type
246  DF  .~.~.~ Having adjustable reticle
247  DF  .~.~.~ Movable relative to base
248  DF  .~.~.~.~ Vertically and laterally adjustable
249  DF  .~.~.~.~ Movable to nonuse position
250  DF  .~.~.~ Readily detachable (i.e., knockdown)
251  DF  .~.~ Having variable size sight aperture
252  DF  .~.~ Movable relative to base
253  DF  .~.~.~ Plural sights, pivotally selective
254  DF  .~.~.~ Vertically
255  DF  .~.~.~.~ And foldably
256  DF  .~.~.~.~.~ And laterally
257  DF  .~.~.~.~ And laterally
258  DF  .~.~.~.~.~ Rectilinearly
259  DF  .~.~.~.~ Nonrectilinearly
260  DF  .~.~.~.~.~ Pivots about transverse axis
261  DF  .~.~ Multisight
262  DF  .~ Body related
263  DF  .~ Structurally installed
264  DF  .~.~ Vehicle
265  DF  .~.~ Archery bow
266  DF  .~.~ Camera
267  DF  .~ With telemetric means
268  DF  .~ Celestial
269  DF  .~.~ Time computing
270  DF  .~.~.~ Including gnomonic indicator (e.g., sundial, etc.)
271  DF  .~.~.~.~ And compass
272  DF  .~ With magnetic compass
273  DF  .~.~ And level or plumb
274  DF  .~ With straight edge instrument or chart
275 R  DF  .~ Combined
275 G  DF  .~.~ With gyroscope
276  DF  .~ Multisight line
277  DF  .~.~ Common viewpoint
278  DF  .~.~ Relatively movable
279  DF  .~.~.~ Angularly and rectilinearly
280  DF  .~.~.~ Each separately adjustable
281  DF  .~ Vertical and horizontal angle measurer
282  DF  .~ Vertical angle
283  DF  .~.~ Having gravity responsive indicating means (e.g., pendulum, etc.)
284  DF  .~.~ Including distance finding feature
285  DF  .~ Horizontal angle measurer
286  DF  .~ Alignment device
287  DF  .~.~ Railway track
288  DF  .~.~ Vehicle chassis, running gear or headlamp
289  DF  .~.~ Game ball (e.g., football, etc.)
290  DF  .~ Level (i.e., surveyor's type)
291  DF  .~.~ Self leveling
292  DF  .~.~ With tubular sighting means (e.g., telescope, etc.)
293  DF  .~ Rod or target
294  DF  .~.~ Self computing type rod
295  DF  .~.~ With leveling or plumbing adjunct
296  DF  .~.~ Extensible rod sections
297  DF  .~ Reticle
298  DF  .~.~ Adjustable
299  DF  .~ Instrument support
300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA
301  DF  .~ Process
302  DF  .~.~ Borehole or tube interior study
303  DF  .~.~ Including calculation or comparison
304  DF  .~ Borehole direction or inclination
305  DF  .~.~ Etching or marking liquid determines orientation
306  DF  .~.~ Fluid (e.g., drilling fluid, etc.) responsive
307  DF  .~.~.~ Varied pressure or pressure pulses representative
308  DF  .~.~ Pendulum mounted or directed marker
309  DF  .~.~.~ Radiant energy or electrically produced marking
310  DF  .~.~.~ Includes magnetic directional indicator
311  DF  .~.~.~ Record movable to marking position
312  DF  .~.~ Electrical telemetering to read-out
313  DF  .~.~ Inclination and direction indications
314  DF  .~.~ Indicator image projected on sensitized record (e.g., photographic, etc.)
315  DF  .~ Thermally sensitive
316  DF  .~ Gyromagnetic compass
317 R  DF  .~.~ Electrical telemetering
317 D  DF  .~.~.~ Differential disparity correction
318  DF  .~ Gyroscopically controlled or stabilized
319  DF  .~.~ Magnetic compass
320  DF  .~.~ Geographic position indication (i.e., latitude or longitude)
321  DF  .~.~ Plural gyroscopes (e.g., reference platform, etc.)
322  DF  .~.~.~ Diverse indications
323  DF  .~.~.~ Directive gyroscope stabilized by auxiliary gyroscope
324  DF  .~.~ Gyroscopic compass
325  DF  .~.~.~ Transmission system for remote readout
326  DF  .~.~.~ Selective correction for deviation
327  DF  .~.~.~ Fluid, suspension or control
328  DF  .~.~ Attitude indicator (i.e., pitch or bank)
329  DF  .~.~.~ Gyroscope mounted, lever indicator and skyplate
330  DF  .~.~.~ Spherical indicator
331  DF  .~ With recorder
332  DF  .~ With marker
333  DF  .~ Structurally installed including relation to feature thereof
334  DF  .~.~ Hand implement (e.g., tool, rifle, camera, etc.)
335  DF  .~ Vehicle running gear, or headlight, inclination
336  DF  .~.~ Wheel supported
337  DF  .~.~ Axle supported
338  DF  .~ Railway rail spacing and inclination
339  DF  .~ With cord-type straight-line guide or holder therefor
340  DF  .~ With measurement in plural directions or of shape
341  DF  .~.~ With variable angle indication
342  DF  .~ With independent linear measurement
343  DF  .~ With angle or shape determination
344  DF  .~ With damper or governor for sensor
345  DF  .~.~ Magnetic
346  DF  .~.~ Fluid
347  DF  .~ Attaching means (i.e., adhesive, magnetic or vacuum viewing aid)
348  DF  .~ With viewing aid (i.e., illuminator or illumination director)
348.2  DF  .~.~ Spirit level electric illuminator
349  DF  .~ With preselected direction indicator
350  DF  .~ With protector or shock absorber
351  DF  .~ Diverse directional indicator
352  DF  .~.~ Includes magnetic compass
353  DF  .~.~ Line plumb and bubble level
354  DF  .~ Combined
355 R  DF  .~ Magnetic field responsive
356  DF  .~.~ Error indicator, preventor, or compensator
357  DF  .~.~.~ Error-producting-field minimizing
358  DF  .~.~.~.~ Adjustable positioned permanent magnet
359  DF  .~.~.~.~.~ Pivoted adjustment
360  DF  .~.~ Utilizing cathode-ray tube or photoelectric cell
361  DF  .~.~ Electro-magnet or inductor (e.g., flux valve, etc.)
362  DF  .~.~.~ Inductor rotated or vibrated
363 R  DF  .~.~ Electrical telemetering
363 K  DF  .~.~.~ Photoelectric pickoff
363 L  DF  .~.~.~ Electrical contact pickoff
363 N  DF  .~.~.~ Electrolytic liquid pickoff
363 Q  DF  .~.~.~ Resistance, capacitance, or inductance pickoff
363 Y  DF  .~.~.~ Fluid jet or pressure pickoff
364  DF  .~.~ Liquid buoyed magnetic needle
355 D  DF  .~.~ Dip aligning needle
365  DF  .~ Level or plumb, terrestrial gravitation responsive
366.11  DF  .~.~ Electrically actuated signal or indicator
366.12  DF  .~.~.~ Plural nonparallel axes or plural orientation sensors
366.13  DF  .~.~.~ With compensation of sensed quantity (e.g., acceleration)
366.14  DF  .~.~.~ With pulse or digital processing circuit component
366.15  DF  .~.~.~ Fluent sensor
366.16  DF  .~.~.~.~ Having light or radiant energy detecting circuit control element
366.17  DF  .~.~.~.~ Having buoyant control element
366.18  DF  .~.~.~.~ Having fluent material reactive circuit control element (e.g., inductive)
366.19  DF  .~.~.~.~.~ Capacitive sensor
366.21  DF  .~.~.~.~ Having resistive or contact circuit control element
366.22  DF  .~.~.~.~.~ By multiple circuit paths through conductive fluid
366.23  DF  .~.~.~ Having light or radiant energy detecting circuit control element
366.24  DF  .~.~.~ Having pendulum sensor
366.25  DF  .~.~.~ Having reactive circuit control element (e.g., inductive, capacitive)
366.26  DF  .~.~.~ Having resistive or contact circuit control element
366.27  DF  .~.~.~ Indicator details
367  DF  .~.~ Plural, similar, separable liquid columns system
368  DF  .~.~ Arresting means for movable indicator
369  DF  .~.~ Line level type
370  DF  .~.~ Work, or workman, attaching means
371  DF  .~.~.~ Requiring no modification of the work
372  DF  .~.~.~.~ Elastic bias type clamping
373  DF  .~.~.~.~ Encircling clamp, loop, or strap
374  DF  .~.~ Relatively movable, coacting, reference-surface sections
375  DF  .~.~.~ Affecting level or plumb indication
376  DF  .~.~ Add-on-type reference-surface section
377  DF  .~.~ Liquid type, upper surface utilizing
378  DF  .~.~.~ Float or piston
379  DF  .~.~.~ Bubble
380  DF  .~.~.~.~ Adjustable size
381  DF  .~.~.~.~ Plural
382  DF  .~.~.~.~.~ Coacting at an angle
383  DF  .~.~.~.~.~ Relatively adjustable
384  DF  .~.~.~.~ Liquid container adjustable on reference-surface section
385  DF  .~.~.~.~.~ Cam-type adjuster (e.g., gear, screw, wedge, etc.
386  DF  .~.~.~.~.~.~ Opposing spring
387  DF  .~.~.~.~.~.~ Adjustment indicium
388  DF  .~.~.~.~.~ Adjustment indicium
389  DF  .~.~.~.~ Bubble-position indicia on reference-surface section
390  DF  .~.~.~.~ Universal, or plural indicating sections on container
391  DF  .~.~ Pendulum
392  DF  .~.~.~ Plumb line (i.e., flexible, line suspended plumb bob)
393  DF  .~.~.~.~ Line take-up reel
394  DF  .~.~.~.~.~ Spring biased
395  DF  .~.~.~ Plural, coacting in intersecting planes
396  DF  .~.~.~ Liquid buoyed
397  DF  .~.~.~ Gimbal mounted
398  DF  .~.~.~ Weight, variable quantity or center of gravity
399  DF  .~.~.~ Indicium adjustably fixed to reference-surface section or to weight
400  DF  .~.~.~.~ Cam-type adjuster (e.g., gear, screw, etc.)
401  DF  .~.~.~ Motion transmitting mechanism drives indicator (e.g., gearing, magnetic coupling)
402  DF  .~.~.~ Means limiting swing
403  DF  STRAIGHTEDGE TYPE
404  DF  .~ Wall guide and plumb (e.g., building construction)
405  DF  .~.~ Batter board type
406  DF  .~.~ Adjustable vertically
407  DF  .~.~ Building is the vertical support
408  DF  .~.~.~ Connected to brick
409  DF  .~.~.~.~ By line tension only
410  DF  .~.~.~.~ Having adjustable clamp
411  DF  .~ Clapboard marking
412  DF  .~ Shaft aligning
413  DF  .~ Cord type
414  DF  .~.~ With chalking feature
415  DF  .~ Multiplane angularly adjustable
416  DF  .~.~ Roof framing
417  DF  .~.~.~ Having rafter cut indicia (e.g., pitch, rise, etc.)
418  DF  .~ Square and pivoted straightedge
419  DF  .~.~ And sliding
420  DF  .~.~ Straightedge as a hypotenuse of the square
421  DF  .~.~.~ Having angle or slope indicating means
422  DF  .~.~ Having circumferential pivot, only
423  DF  .~.~ With indicia for rafter cuts
424  DF  .~.~ With protractor
425  DF  .~.~.~ And sliding straightedge
426  DF  .~.~.~ Located on straightedge
427  DF  .~ Square and sliding nonpivotal straightedge(s)
428  DF  .~.~ Straightedge bisects right angle of square (i.e., centering square)
429  DF  .~ Square and fixed straightedge
430  DF  .~ Base attached
431  DF  .~.~ Navigation
432  DF  .~.~ Perspective drawing
433  DF  .~.~.~ With T-square straightedge
434  DF  .~.~.~ With parallel straightedge arrangement (i.e., drafting machine)
435  DF  .~.~ Rotary base
436  DF  .~.~ Linear counter rule
437  DF  .~.~ With guide or catch for T-square type
438  DF  .~.~ Universal parallelism arrangement
439  DF  .~.~.~ Wheel and band
440  DF  .~.~.~.~ With counterbalance
441  DF  .~.~.~ Double linkage
442  DF  .~.~.~.~ With counterbalance
443  DF  .~.~ Both ends connected
444  DF  .~.~.~ By cord and roller
445  DF  .~.~.~ By rack and pinion
446  DF  .~.~.~ One end moveable along straightedge
447  DF  .~.~ Set shift, positively
448  DF  .~ With means for moving straightedge over a surface
449  DF  .~.~ By rollers
450  DF  .~.~ Set shift
451  DF  .~ Combined with level
452  DF  .~ Plural straightedges, relatively moveable
453  DF  .~.~ Triangulation (e.g., solving trigonometric functions)
454  DF  .~.~ Parallel type
455  DF  .~.~ Intercontrolled bevel blades
456  DF  .~.~ Multipivoted straightedges
457  DF  .~.~.~ Navigational
458  DF  .~.~.~ Folding rule type
459  DF  .~.~.~ Two straightedges pivoted at the ends of a central straightedge
460  DF  .~.~.~.~ At least one pivot is sliding
461  DF  .~.~.~.~.~ Central straightedge longitudinally adjustable
462  DF  .~.~.~.~ Central straightedge longitudinally adjustable
463  DF  .~.~.~.~ Three straightedges forming a triangle
464  DF  .~.~ Sliding
465  DF  .~.~ Single pivot
466  DF  .~.~.~ Handsaw attachment
467  DF  .~.~.~ Lettering guide
468  DF  .~.~.~ T-head with pivoted straightedge
469  DF  .~.~.~.~ Locking
470  DF  .~.~.~.~ Sliding
471  DF  .~.~.~ With angle indicating means
472  DF  .~.~.~ Pivoted straightedge and sliding nonpivoted
473  DF  .~.~.~ Sliding pivotal adjustment
474  DF  .~ Plural straightedges nonadjustably fixed at right angles (e.g., T-square, triangles, squares)
475  DF  .~.~ With right angle truing adjustment
476  DF  .~.~ With special scale markings
477  DF  .~.~ Lettering guide
478  DF  .~.~ Folding or separable
479  DF  .~.~ T-square
480  DF  .~.~ Try square
481  DF  .~.~ Multiplane
482  DF  .~ Plural nonadjustable straightedges forming nonright angles
483  DF  .~ Rules
484  DF  .~.~ With attachment
485  DF  .~.~.~ For performing diverse function
486  DF  .~.~.~ Index
487  DF  .~.~.~.~ For subdividing
488  DF  .~.~.~.~ Optical (e.g., magnifying)
489  DF  .~.~.~ For supporting above work surface
490  DF  .~.~.~ Located on end
491  DF  .~.~.~ Selectable
492  DF  .~.~ Edge details
493  DF  .~.~ Particular material
494  DF  .~.~ Special scale markings
495  DF  .~ Pivot joints
496  DF  .~.~ 180 degree limit
497  DF  .~.~.~ Locking
498  DF  .~.~ 90 degree limit
499  DF  .~.~.~ Locking
500  DF  .~.~ Locking
121  DF  AREA INTEGRATORS
122  DF  .~ Planimeters
123  DF  .~ Electrical
124  DF  .~ Rolling contact
700  DF  DISTANCE MEASURING
701  DF  .~ Process
702  DF  .~ Error compensation (e.g., temperature)
703  DF  .~ Environmental isolation
704  DF  .~.~ Thermal
705  DF  .~.~ Sealing
706  DF  .~ Scale reading position sensor (e.g., grid counting)
707  DF  .~.~ Optical
708  DF  .~.~ Magnetic
709  DF  .~ Convertable to another type measuring means
710  DF  .~ Machine parts
711  DF  .~.~ Rolling contact
712  DF  .~ Article support integral with measuring means
713  DF  .~ Sounding type
714  DF  .~.~ With electric control means
715  DF  .~.~.~ Of line
716  DF  .~.~ Including electrical signal means
717  DF  .~.~ With sampling means
718  DF  .~.~.~ Hole type
719  DF  .~.~ Depth indication
720  DF  .~.~ Line with weight
721  DF  .~.~ For nongaseous material
722  DF  .~.~.~ Liquid (e.g. dipstick)
723  DF  .~.~.~.~ With means to adjust measuring rod
724  DF  .~.~.~.~.~ Having plural contacts
725  DF  .~.~.~.~ With cleaning means
726  DF  .~.~.~.~ With guide
727  DF  .~.~.~.~ With filter or vent
728  DF  .~.~.~.~ With lock means
729  DF  .~.~.~.~ Shape of indicator
730  DF  .~.~.~.~ With holder or housing for indicator
731  DF  .~.~.~.~.~ Including seal
732  DF  .~ Of flexible material
733  DF  .~.~ Supply (e.g., bolt, roll)
734  DF  .~.~ By rolling contact
735  DF  .~.~.~ With computing means
736  DF  .~.~.~ With particular electric output or circuit
737  DF  .~.~.~ With recording or marking means
738  DF  .~.~.~ Having rectilinear scale
739  DF  .~.~.~ With signal means
740  DF  .~.~.~ With stop means
741  DF  .~.~.~.~ For motor
742  DF  .~.~.~.~ By clutch
743  DF  .~.~.~ Combined
744  DF  .~.~.~ Belt type
745  DF  .~.~.~ Zero setting means
746  DF  .~.~.~ Rotating and stationary surfaces
747  DF  .~.~.~ Opposed rotating surfaces
748  DF  .~.~.~.~ Plural
749  DF  .~.~.~.~.~ Only three
750  DF  .~.~ Predetermined stop or signal means
751  DF  .~.~ With marking means
752  DF  .~.~ With ratchet means to move indicator
753  DF  .~.~ With gear means to move indicator
754  DF  .~.~ With take up reel
755  DF  .~ By flexible tape
756  DF  .~.~ Cord type
757  DF  .~.~ Means to keep tape straight
758  DF  .~.~ With adhesive or securing means
759  DF  .~.~ Specified use
760  DF  .~.~ Combined
761  DF  .~.~ Specified reel housing feature
762  DF  .~.~.~ With meter
763  DF  .~.~.~.~ Including computing means
764  DF  .~.~.~ Plural tapes
765  DF  .~.~.~ Opening in housing for reading tape
766  DF  .~.~.~ Inside-outside measure
767  DF  .~.~.~ Including brake or lock
768  DF  .~.~.~ Including attachment
769  DF  .~.~.~ Housing shape, structure or material
770  DF  .~.~ Including attachment
771  DF  .~.~ Specified tape material
772  DF  .~ Of length by rolling contact
773  DF  .~.~ With computing means
774  DF  .~.~ Having rectilinear indicator
775  DF  .~.~ Combined
776  DF  .~.~ Belt type
777  DF  .~.~ Inside tube
778  DF  .~.~ On running material (e.g., mill type)
779  DF  .~.~ Implement
780  DF  .~.~.~ With digital indicator
781  DF  .~.~.~.~ Including handle for implement
782  DF  .~.~.~ With handle
783  DF  .~ Opposed contacts
784  DF  .~.~ Digital indicator
785  DF  .~.~ Fluid indicator
786  DF  .~.~.~ Liquid column indicator
787  DF  .~.~ Extensometer
788  DF  .~.~.~ With circuit means
789  DF  .~.~.~.~ Including differential transformer
790  DF  .~.~.~ Including means to clamp indicator to material
791  DF  .~.~ Optical indicator
792  DF  .~.~ Rotary indicator
793  DF  .~.~.~ Electrically controlled
794  DF  .~.~.~ Hand held implement
795  DF  .~.~.~.~ Beam type
796  DF  .~.~.~.~.~ Nonpivoted type with scale
797  DF  .~.~.~.~ Pivoted type
798  DF  .~.~.~.~.~ Center pivot
799  DF  .~.~.~.~.~.~ With screw or gear adjustment means
800  DF  .~.~.~.~.~.~ With spring adjustment means
801  DF  .~.~.~.~.~.~ With scale
802  DF  .~.~.~.~ Rectilinear push or pull actuator
803  DF  .~.~.~ Bench type
804  DF  .~.~.~.~ Lever actuator
805  DF  .~.~.~ With work support
806  DF  .~.~ Rectilinear indicator
807  DF  .~.~ Pivoted type with scale
808  DF  .~.~.~ With adjustment means
809  DF  .~.~ Exstensible-rule type
810  DF  .~.~ Beam type with scale
811  DF  .~.~.~ With means to adjust one contact member
812  DF  .~.~.~ Including means to lock one contact member
813  DF  .~.~ Micrometer
814  DF  .~.~.~ Differential screw
815  DF  .~.~.~ With means for maintaining a constant or limited pressure on the contacts
816  DF  .~.~.~ With wear compensation or backlash prevention means
817  DF  .~.~.~ With lock
818  DF  .~.~.~ With additional indicator
819  DF  .~.~.~.~ Digital
820  DF  .~.~.~.~ Electrical
821  DF  .~.~.~ With preliminary setting arrangement
822  DF  .~.~.~.~ By disengaging threaded element
823  DF  .~.~.~.~ Micrometer slidably mounted on a beam
824  DF  .~.~.~.~.~ Other contact slidable on beam
825  DF  .~.~.~.~ Spindle or micrometer slidable
826  DF  .~.~.~.~ By use of interchangeable parts of different sizes
827  DF  .~.~.~ Inside measurement only
828  DF  .~.~.~ With attachment
829  DF  .~.~.~.~ Particularly adapted for measuring threaded element
830  DF  .~.~.~ With special scale markings
831  DF  .~.~.~ Details (e.g., spindle or anvil adjustment, material
832  DF  .~ Single contact with a work engaging support
833  DF  .~.~ Adapted for a particular workpiece
834  DF  .~.~.~ Coating or surface layer thickness
835  DF  .~.~.~ Reeled material
836  DF  .~.~.~ Depth of aperture or groove
837  DF  .~.~ Fluid actuated indicator
838  DF  .~.~ Screw adjustment
501  DF  GAUGE
501.01  DF  .~ Leather grading or size
501.02  DF  .~ Continuous gauging
501.03  DF  .~.~ Including electric means
501.04  DF  .~.~.~ Pivoted probe
501.05  DF  .~ Comparator
501.06  DF  .~.~ Beam type
501.07  DF  .~.~.~ Three contact probes
501.08  DF  .~.~ Hand held
501.09  DF  .~.~.~ Plural contact probes
501.1  DF  .~.~.~.~ Only three probes
501.2  DF  .~.~.~.~.~ With rotary indicator
501.3  DF  .~.~.~.~ Only four probes
501.4  DF  .~.~.~.~ With rotary indicator
501.45  DF  .~.~.~.~ Fixed size
501.5  DF  .~.~.~ With pivot means
501.6  DF  .~.~ Electric type
501.7  DF  .~ Tooth testing (e.g., gear, rack)
501.8  DF  .~.~ By electrical comparison
501.9  DF  .~.~.~ Including a probe
501.11  DF  .~.~ Implement type
501.12  DF  .~.~ Internal
501.13  DF  .~.~ By pair of engaged gears
501.14  DF  .~.~ By probe
501.15  DF  .~.~.~ Teeth spacing
501.16  DF  .~.~.~ Including a master
501.17  DF  .~.~.~ Plural probes
501.18  DF  .~.~.~.~ Only two
501.19  DF  .~.~ By rotary master
193  DF  .~ Axle
194  DF  .~ Door and window
195  DF  .~ Hoof
196  DF  .~ Millstone
197  DF  .~ Mortise
199 R  DF  .~ Screw thread
199 B  DF  .~.~ Bench type
200  DF  .~ Spectacle
201  DF  .~ Tool
202  DF  .~.~ Saw
203  DF  .~ Wheel
203.1  DF  .~.~ Watch
203.11  DF  .~.~ Tread contour
203.12  DF  .~.~ With wheel supporting means
203.13  DF  .~.~.~ Roller or drum
203.14  DF  .~.~.~ Pivoted or sliding scuff board
203.15  DF  .~.~ Floor supported, wheel contacting
203.16  DF  .~.~.~ Plane and radius
203.17  DF  .~.~.~ Trammel
203.18  DF  .~.~ Axle, vehicle, or wheel supported
203.19  DF  .~.~.~ Plane and radius
203.2  DF  .~.~.~ Trammel
203.21  DF  .~.~ Trammel
502  DF  .~ With calibration device or gauge for nuclear reactor element
503  DF  .~ Coordinate movable probe or machine
504  DF  .~ With computer responsive to contact probe
505  DF  .~ Having program control or an analogue to digital device
506  DF  .~ Target, weapon, or weapon projectile
507  DF  .~ Lens
508  DF  .~ Golf stance, swing or club analysis
509  DF  .~ Bowling ball
510  DF  .~.~ Grip
511  DF  .~ Anatomical
512  DF  .~.~ Human
513  DF  .~.~.~ Dental
514  DF  .~.~.~.~ With mouth or teeth contact
514.1  DF  .~.~.~ Ring type
514.2  DF  .~.~.~ Conformator
515  DF  .~.~.~ Having a support or foot locator for body
516  DF  .~ Point reproducer
517  DF  .~ Bearing or bearing part
518  DF  .~ Masonry construction
519  DF  .~ Cam profile or keyway
520  DF  .~ Center, point, distance between centers, or centerline location
521  DF  .~ Earth profile or road grade or shrub or tree trim guide
522  DF  .~ Container
523  DF  .~ With conveying wheel support
523.1  DF  .~.~ For railway track
523.2  DF  .~.~.~ With recording means
524  DF  .~ Pie, cake, cheese, pizza, or sandwich portion
525  DF  .~.~ Pie, cake, cheese, pizza or sandwich portion
526  DF  .~ Flooring, floor or wall covering, or molding
527  DF  .~.~ Floor covering
528  DF  .~ Wall panel outline marker for utility
529  DF  .~ Pipe layout or fitting
530  DF  .~ Pitchometer
531  DF  .~ Taper
532  DF  .~.~ External
533  DF  .~ Straightness, flatness, or alignment
534  DF  .~ Angle
535  DF  .~.~ Squareness
536  DF  .~.~ Sine, cosine, or tangent bar
537  DF  .~.~.~ Article support
538  DF  .~.~ Fixed pivot at one end
539  DF  .~ Lock or key
540  DF  .~.~ Cylinder lock tumbler decoder
541  DF  .~ Postage stamp or mechanical coupling gauge
600  DF  .~ Automotive
601  DF  .~.~ Mechanical engine timing by piston contact in engine cylinder
602  DF  .~.~ Distributor point setting
603  DF  .~.~ Connecting rod
604  DF  .~.~.~ With piston
605  DF  .~.~ Piston, piston ring, or crankshaft
606  DF  .~.~ Power train
607  DF  .~.~ Fuel pump, injection nozzle or valve, or carburator
608  DF  .~.~ Frame alignment
609  DF  .~.~ Brake
610  DF  .~.~.~ Drum or shoe
611  DF  .~.~ Engine valve, valve-stem, or tappet
612  DF  .~.~ Torsion bar
613  DF  .~ Collocating
614  DF  .~.~ Printing member registration
615  DF  .~.~.~ Photographic member or holder with respect to surface
616  DF  .~.~.~ Transparent registration sheet to align printing on member
617  DF  .~.~.~ Printing type or plate
618  DF  .~.~.~.~ Curved printing member with respect to its support
619  DF  .~.~.~.~ Page form registration with respect to its support or to another form on same support
620  DF  .~.~.~.~ Plate registration with respect to second plate or printing sheet
621  DF  .~.~.~.~ Plate registration with respect to plate support
622  DF  .~.~.~ Hand stamp registration with respect to printing location on sheet to be printed
623  DF  .~.~ Sheet registering device
624  DF  .~.~ Earth contacting or working
625  DF  .~.~.~ Trenching tool depth
626  DF  .~.~ Tool or surrogate
627  DF  .~.~.~ Die
628  DF  .~.~.~ Cutter or shaper
629  DF  .~.~.~.~ Screw thread
630  DF  .~.~.~.~ Cutter with respect to workpiece end
631  DF  .~.~.~.~.~ Shears
632  DF  .~.~.~.~ Axis of rotary cutter with respect to axis of cylindrical workpiece
633  DF  .~.~.~.~ Planar blade with respect to its holder or another part
634  DF  .~.~.~.~.~ With respect to its rotary holder
635  DF  .~.~.~.~.~.~ Plural blade holder
636  DF  .~.~.~.~ Bit with respect to its holder
637  DF  .~.~.~.~.~ Boring bar holder
638  DF  .~.~.~.~ Bit with respect to workpiece or workpiece holder
639  DF  .~.~.~.~ Drill or bit with respect to chuck or spindle holder
640  DF  .~.~.~.~ Circular cutter with respect to workpiece or workpiece support
641  DF  .~.~.~.~ With respect to support
642  DF  .~.~.~ Spindle or chuck with respect to workpiece or workpiece support
643  DF  .~.~.~ Millstone with respect to millstone shaft
644  DF  .~.~ Centering or point location
645  DF  .~.~ Alignment
646  DF  .~.~ Clapboard lapping
647  DF  .~.~.~ Having tab for supporting bottom of clapboard
648  DF  .~.~ Shingle lapping gauge
649  DF  .~.~.~ Having tab on underside of shingle
650  DF  .~.~ Shoe, shoe part, or last
651  DF  .~.~ Railway track or railway vehicle part
651.1  DF  .~.~.~ Track type
652  DF  .~.~ Burner fuel emitting member with respect to electrode spacing
653  DF  .~.~ Insignia with respect to garment, e.g., uniform
654  DF  .~.~ Valve
655  DF  .~.~ Machine parts
656  DF  .~.~.~ Electrical dynamo
657  DF  .~.~.~ Rolls, or roll and coacting part
658  DF  .~.~.~ Typewriter
659  DF  .~.~.~ Watch
660  DF  .~.~.~ Wheel quartering or crank arm, connecting rod or crank pin with respect to one or the other
661  DF  .~.~.~ Plural axes center for common axis
662  DF  .~ Button or buttonhole
663  DF  .~ Proportional line segmenter
664  DF  .~.~ Parallelogram type
665  DF  .~.~ Dividers
666  DF  .~ With point marker
667  DF  .~.~ For door or drawer hinge, pull or securing means
668  DF  .~.~ For windup tape or tape casing, or marker attachment for tape
669  DF  .~.~ Plural markers
670  DF  .~.~ Having marker centering means
671  DF  .~.~.~ For marking center of a hole
672  DF  .~.~.~ Having diverging-angle bisector workpiece-contacting members with marker on angle bisector
673  DF  .~.~.~ Having adjustable workpiece-contacting centering means
674  DF  .~.~.~.~ Pivoted caliper workpiece-contacting means
675  DF  .~.~.~.~ Rack and pinion operating workpiece-contacting means
676  DF  .~.~.~ Having workpiece-contacting tapered centering means
677  DF  .~.~ Having workpiece-contacting device with marking to align with workpiece marking
678  DF  .~.~ Angularly adjustable about an axis
679  DF  .~.~ Marker located with respect to two different directions
679.1  DF  .~ Special scale markings
542  DF  .~ Internal
543  DF  .~.~ Concentricity or eccentricity
543.1  DF  .~.~ Fluid type
544  DF  .~.~ Earth cavity or tube
544.1  DF  .~.~.~ Including means to rotate probe
544.2  DF  .~.~.~ Having means to actuate probe
544.3  DF  .~.~.~.~ Biased probe
544.4  DF  .~.~ Tapered probe
544.5  DF  .~.~ Having more than two probes
544.6  DF  .~.~.~ Only three probes
542.1  DF  .~.~ Telescoping caliper or stem gauge
545  DF  .~ Comparison with a standard
546  DF  .~.~ Profile
547  DF  .~.~.~ Optical comparison
548  DF  .~ Plural tests
549  DF  .~ With support for gauged article
550  DF  .~.~ Concentricity
551  DF  .~.~ Profile
552  DF  .~.~.~ Having plural contact members
553  DF  .~.~.~ Member contacts successive points on the article
554  DF  .~.~.~.~ With recording of contact member position at each point on the article
555  DF  .~.~ Having indicator of probe position or movement
555.1  DF  .~ Circular size
555.2  DF  .~.~ Aperture type
555.3  DF  .~.~ "V" type
555.4  DF  .~.~ Flexible band type
556  DF  .~ Having a movable contact probe
557  DF  .~.~ Plural probes
558  DF  .~.~ Electrical switch or transducer responsive to probe or probe is part of electrical circuit
558.01  DF  .~ Pivoted probes (e.g., divider, caliper, etc.)
558.02  DF  .~.~ Proportional
558.03  DF  .~.~ Point parallelizing
558.04  DF  .~.~ Having adjustable legs
558.05  DF  .~.~.~ By screw means
558.06  DF  .~.~.~.~ Tangent
558.07  DF  .~.~.~.~ Median
558.08  DF  .~.~.~.~ Quick adjustment
558.09  DF  .~.~.~.~ Having opposed threads
558.1  DF  .~.~.~.~ Rotatable nut
558.2  DF  .~.~ Plural legs or contact probes
558.3  DF  .~.~ Removable probe
558.4  DF  .~.~ Pivoted probe
558.5  DF  .~.~ Median handle
559  DF  .~ Movable contact probe, per se
560  DF  .~.~ Plural probes
561  DF  .~.~ With electrical switch or transducer responsive to probe
561.1  DF  .~ Conformator or adjustable curve template
561.2  DF  .~.~ Flexible type
561.3  DF  .~.~.~ Including plural adjustment means
562  DF  .~ Template
563  DF  .~.~ Single sheet type
564  DF  .~.~.~ Alphabetical or numerical symbol type
565  DF  .~.~.~ Geometrical figure, three dimensional to two dimensional figure or curve
566  DF  .~.~.~ Line or guide
567  DF  .~ Surface plate or gauge block
567.1  DF  .~.~ Adjustable gauge block
568  DF  .~ Work support adjustment
569  DF  .~.~ Rotary
570  DF  .~.~.~ Pin and slot type
571  DF  .~ With scale
572  DF  .~ Probe support
573  DF  .~ Work support
574  DF  POINT MARKER GUIDE
575  DF  .~ Button or buttonhole marker guide
576  DF  .~.~ With workpiece support
577  DF  .~ With support for workpiece
578  DF  .~ For plural markers
579  DF  .~ For marker movement in direction of marker axis
*********************************
FOREIGN ART COLLECTIONS
*********************************
*  DD  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA
*  DD  .~ Level or plumb, terrestrial gravitation responsive
FOR 100  DF  .~.~ Electrically actuated signal or indicator (33/366)
******************************
DIGESTS
******************************
DIG 1  DD  Magnetic
DIG 2  DD  Air
DIG 3  DD  Photoelectric
DIG 4  DD  Interferometer
DIG 5  DD  Differential transformer
DIG 6  DD  Dial indicator shock absorber
DIG 7  DD  Ribbon and wires
DIG 8  DD  Eccentrics
DIG 9  DD  Rectangular proportioner
DIG 10  DD  Outlet box
DIG 11  DD  Materials
DIG 12  DD  Mechanical expedients
DIG 13  DD  Wire and strain gauges
DIG 14  DD  Spline and gear
DIG 15  DD  Piston position indicator
DIG 16  DD  Clips and rafters
DIG 17  DD  Piston ring and bearing race gauging
DIG 18  DD  Flush pin gauges
DIG 19  DD  Thermal expansive
DIG 20  DD  Tile
DIG 21  DD  With laser