US PATENT SUBCLASS 235 / 61 R
CALCULATORS

Current as of: June, 1999
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235 /   HD   REGISTERS

61 RCALCULATORS {52}
58 R  DF  .~> Recording {7}
200 R  DF  .~> Including means utilizing fluid, e.g., fluid amplifiers {3}
62 R  DF  .~> Motor actuated {6}
63 R  DF  .~> Traveling carriage {14}
64  DF  .~> Adding pencils
64.3  DF  .~> Decimal point locators
64.7  DF  .~> Photographic
65  DF  .~> Bar and disk
66  DF  .~> Cylinder and disk
67  DF  .~> Spiral
68  DF  .~> Ball
69  DF  .~> Bar {1}
71 R  DF  .~> Belt {1}
72  DF  .~> Parallel axes {3}
77  DF  .~> Single axis {3}
85 R  DF  .~> Tabular {5}
61 A  DF  .~> Miscellaneous
61 B  DF  .~> Tabular
61 C  DF  .~> Integrating
61 D  DF  .~> Chart integrators
61 DP  DF  .~> Decimal point indicators
61 E  DF  .~> Mean or average computers
61 F  DF  .~> Multiplying machine - miscellaneous
61 FA  DF  .~> Precomputed products
61 FB  DF  .~> Variator with counter
61 FC  DF  .~> Variator with accumulator
61 FD  DF  .~> Partial products
61 FE  DF  .~> Successive addition
61 G  DF  .~> Odds computers
61 GM  DF  .~> Geometrical
61 J  DF  .~> Miles per gallon
61 K  DF  .~> Partial product wherein result is obtained in (one) summation
61 P  DF  .~> Polynominal
61 L  DF  .~> Variators - change speed gear devices
61 M  DF  .~> Volume and price computers
61 NV  DF  .~> Navigational
61 PS  DF  .~> Computing scales
61 PA  DF  .~> Mechanical input-output
61 PB  DF  .~> Input-output with storage
61 PC  DF  .~> Input-output from racks to computer
61 PD  DF  .~> Input-output from register to computer
61 PE  DF  .~> Input-output from keyboard to computer
61 PF  DF  .~> Input-output from typewriter to computer
61 PG  DF  .~> Electrical from computer to adding machine
61 PH  DF  .~> Input-output electrical from calculator to typewriter
61 PJ  DF  .~> Input-output electrical from computer to card or tape
61 PK  DF  .~> Input-output calculator to indicator, printer, etc.
61 PL  DF  .~> Storage medium conversion
61 PM  DF  .~> Interconnection, sequencing and programming
61 S  DF  .~> Transportation
61 T  DF  .~> Transportation balance computers
61 V  DF  .~> Transportation time-distance schedules

Unofficial Alpha Subclasses: R A B C D DP E F FA FB FC FD FE G GM J K L NV PS PA PB PC PD PE PF PG PH PJ PK PL PM T

DEFINITION

Classification: 235/61

(under the class definition) Subject matter comprising calculating-machines. In this group are classified machines

for mechanically performing the various mathematical operations, usually those of addition or subtraction, frequently that of multiplication, and occasionally of division. These machines generally comprise registers and keys or equivalents for operating them, together with necessary auxiliary devices.

SEE OR SEARCH CLASS

33, Geometrical Instruments, for means for calculating unknown functions of geometrical figures, said means having members designed to form representations of said figures.

73, Measuring and Testing,

861.43+, for integrating means combined with flow meter structures.

177, Weighing Scales, 25+, for a weigher with means making a calculation using a weight evaluation by the weigher as a factor.

315, Electric Lamp and Discharge Devices: Systems,

8.5+, for cathode-ray tube systems responsive to electrical pulses for counting or storing such pulses, or for translating such pulses from one code to another code, and subclass 84.5 for electrical pulse counting or storing circuits employing gaseous space discharge devices.

333, Wave Transmission Lines and Networks,

19, for differentiating or integrating networks of the passive type.