Matches 451 - 473 out of 473 < 1 2 3 4 5 6 7 8 9 10
Match Document Document Title
3653764 COLORIMETER  
This invention relates to a colorimeter with a light source which through a sample to be investigated illuminates a photo-electric transducer, the output of which is connected to a measuring device...
3641626 DEVICE FOR PRODUCING UNIFORM TOW  
A holddown device for compacting and flattening tow for uniform presentation to a color detection apparatus. The tow is passed under a roll which is secured at its ends to a support means and which...
3604812 DEVICE FOR COMPARATIVE COLOR TESTING  
A device for visually comparing the inherent color of specimens of materials, such as transparent polystyrene, under substantially uniform conditions. The device comprises a specimen receiving...
3604840 COLOR ENCODER  
A color encoder for encoding the colors detected in scanning a document which detects the first region among a contiguous set of regions of equal area containing a color other than background...
3601589 PROCESS AND APPARATUS FOR PRODUCING COLORED CHEMICAL COATINGS  
A computer-aided color formulation process is provided wherein a color standard is matched by a blend of pigments from a library of pigments. Reflectance values of the standard color at a plurality...
3515492 COMBINED PHYSICAL COLOR AND SUBJECTIVE COLOR  
3506364 COLOR RENDITION INDEX METER  
3463641 PROCESS FOR PRODUCING COMPRESSED DRY FOOD AND PRODUCT  
3459948 PROCESS FOR QUANTITATIVELY MEASURING THE COLOR DENSITY OF STAINED STRIPS  
3457018 DUAL RETICLE DEVICE  
3435685 APPARATUS FOR SAMPLING AND MEASURING PHYSICAL PARAMETERS OF OBJECTS  
3406293 Method of determining color using color maps  
3378636 Color television tube with ambient light filter  
3377467 Photometric readout system  
3278752 Wide angle optical system having a telecentric stop and an interference filter  
3276004 Apparatus for detecting gas  
3055258 Bragg diffraction ultrasonic devices  
2946879 Illuminating device  
2936276 Photochemical compositions and processes utilizing salts of para-amino triphenylacetonitriles  
2793560 Color analyzer  
7352462 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
  
3606548 Title is not available  
3565533 Title is not available  
Matches 451 - 473 out of 473 < 1 2 3 4 5 6 7 8 9 10