| | CLASS NOTES |
| 2 | DF | CONTOUR PLOTTING |
| 3 | DF | RANGE OR REMOTE DISTANCE FINDING {9} |
| 23 | DF | MOTION STOPPING (E.G., STROBOSCOPES) {2} |
| 27 | DF | VELOCITY OR VELOCITY/HEIGHT MEASURING {1} |
| 29 | DF | OPTICAL ELEMENT OR RETICLE RESPONDS TO RELATIVE VELOCITY OF REMOTE OBJECT |
| 30 | DF | CRYSTAL OR GEM EXAMINATION {1} |
| 32 | DF | MATERIAL STRAIN ANALYSIS {2} |
| 36 | DF | WITH SAMPLE PREPARATION {2} |
| 39 | DF | BLOOD ANALYSIS {1} |
| 43 | DF | OPTICAL PYROMETERS {3} |
| 51 | DF | INFRARED AND ULTRAVIOLET |
| 52 | DF | EGG CANDLING {6} |
| 69 | DF | CUTTING BLADE SHARPNESS |
| 70 | DF | OIL TESTING (E.G., CONTAMINATION) |
| 71 | DF | DOCUMENT PATTERN ANALYSIS OR VERIFICATION |
| 72 | DF | WITH PLURAL DIVERSE TEST OR ART |
| 73 | DF | PLURAL TEST |
| 73.1 | DF | FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION |
| 300 | DF | BY DISPERSED LIGHT SPECTROSCOPY {10} |
| 335 | DF | FOR SIZE OF PARTICLES {1} |
| 337 | DF | BY PARTICLE LIGHT SCATTERING {1} |
| 344 | DF | BY ELECTROPHORESIS |
| 345 | DF | BY LIGHT INTERFERENCE (E.G., INTERFEROMETERS) {11} |
| 364 | DF | BY POLARIZED LIGHT EXAMINATION {4} |
| 371 | DF | FOR FLATNESS |
| 121 | DF | LAMP BEAM DIRECTION OR PATTERN {1} |
| 123 | DF | FOCAL POSITION OF LIGHT SOURCE |
| 124 | DF | LENS OR REFLECTIVE IMAGE FORMER TESTING {3} |
| 128 | DF | REFRACTION TESTING (E.G., REFRACTOMETERS) {5} |
| 138 | DF | ANGLE MEASURING OR ANGULAR AXIAL ALIGNMENT {11} |
| 372 | DF | BY MENSURATION {8} |
| 388 | DF | BY CONFIGURATION COMPARISON {8} |
| 399 | DF | BY ALIGNMENT IN LATERAL DIRECTION {2} |
| 402 | DF | BY SHADE OR COLOR {10} |
| 426 | DF | BY INSPECTION WITH AGITATION OR ROTATION {2} |
| 429 | DF | BY MONITORING OF WEBS OR THREAD {1} |
| 432 | DF | FOR LIGHT TRANSMISSION OR ABSORPTION {3} |
| 445 | DF | OF LIGHT REFLECTION (E.G., GLASS) {3} |
| 213 | DF | PHOTOMETERS {9} |
| 237.1 | DF | INSPECTION OF FLAWS OR IMPURITIES {6} |
| 242.1 | DF | THREAD COUNTING |
| 243.1 | DF | STANDARD {3} |
| 244 | DF | SAMPLE, SPECIMEN, OR STANDARD HOLDER OR SUPPORT (E.G., PLATES OR SLIDES) {2} |
| 247 | DF | FIDUCIAL INSTRUMENTS {3} |
| 256 | DF | MISCELLANEOUS |
| | ********************************* |
| | FOREIGN ART COLLECTIONS |
| | ********************************* |
| FOR 100 | DF | INSPECTION FOR FLAWS OR IMPERFECTIONS (356/237) {3} |
| FOR 105 | DF | THREAD COUNTING (356/242) |
| FOR 106 | DF | STANDARDS (356/243) |
| | ********************************* |
| | CROSS REFERENCE ART COLLECTIONS |
| | ********************************* |
| 900 | DF | INTERFEROMETERS (GO1B 9/02) {3} |
| 904 | DF | MEASURING MICROSCOPES (GO1B 9/04) |
| 905 | DF | MEASURING TELESCOPES (GO1B 9/06) |
| 906 | DF | OPTICAL PROJECTION COMPARATORS, E.G., FOR PROFILE (GO1B 9/08) |
| 907 | DF | GONIOMETERS (GO1B 9/10) |
| 908 | DF | MEASURING LENGTH, WIDTH, OR THICKNESS (GO1B 11/02) {2} |
| 911 | DF | MEASURING THE DEFORMATION IN A SOLID, E.G., OPTICAL STRAIN GAUGE (GO1B 11/16) |
| 912 | DF | MEASURING ANGLES (GO1C 1/00) {2} |
| 916 | DF | ALTIMETERS FOR AIRCRAFT (GO1C 5/00A) |
| 917 | DF | MEASURING INCLINATION, E.G., BY CLINOMETERS, BY LEVELS (GO1C 9/00) |
| 918 | DF | PHOTOGRAMMETRY; PHOTOGRAPHIC SURVEYING (GO1C 11/00) {2} |
| 922 | DF | PHOTOMETRY, E.G., PHOTOGRAPHIC EXPOSURE METER (GO1J 11/04) |
| 923 | DF | RADIATION PYROMETRY (GOLJ 5/00) |
| 924 | DF | MEASURING VELOCITY OF LIGHT (GOLJ 7/00) |
| 925 | DF | MEASURING OPTICAL PHASE DIFFERENCE: MEASURING OPTICAL WAVELENGTH (GO1J 9/00) |
| 926 | DF | MEASURING THE CHARACTERISTICS OF INDIVIDUAL OPTICAL PULSES OR OF OPTICAL PULSE TRAINS (GO1J 11/00) |
| 927 | DF | MEASURING VARIATIONS OF OPTICAL PROPERTIES OF MATERIAL WHEN IT IS STRESSED, E.G., BY PHOTOELASTIC STRESS ANALYSIS USING INFRA-RED, VISIBLE LIGHT, ULTRA-VIOLET (GO1L 1/24) |
| 928 | DF | INVESTIGATING OR ANALYZING MATERIALS BY THE USE OF OPTICAL MEANS, I.E., USING INFRA-RED, VISIBLE, OR ULTRA-VIOLET LIGHT (GO1N 21/00) {5} |
| 955 | DF | MEASURING LINEAR OR ANGULAR SPEED UTILIZING DEVICES CHARACTERIZED BY THE USE OF OPTICAL MEANS, E.G., USING INFRA-RED, VISIBLE, OR ULTRA-VIOLET LIGHT (GO1P 3/36) {3} |
