Prototype fabrication of new products for others in the field of optical sensing instruments

CAMERAS AND PARTS THEREOF; AEROCAMERAS; MOTION-PICTURE CAMERAS AND PROJECTORS; LANTERN, FILM SLIDE AND STEREOSCOPIC PROJECTORS; PHOTOGRAPHIC DEVELOPING, PRINTING, AND RETOUCHING AND ENLARGING APPARATUS, AND PARTS THEREOF; PHOTOGRAPHIC EXPOSURE MEASURING INSTRUMENTS; OPTICAL VIEW FINDERS, SHUTTERS; PHOTOGRAMMETRIC INSTRUMENTS AND PARTS THEREOF; ELECTRICALLY CONTROLLED, WEIGHTING AND ASSORTING APPARATUS; MECHANICAL DRAWING INSTRUMENTS AND APPARATUS; SLIDE RULES, TALKING PICTURE MACHINES; PHONOM...

[ CAMERAS AND PARTS THEREOF; AEROCAMERAS; ] MOTION-PICTURE CAMERAS AND PROJECTORS; [ LANTERN ] FILM SLIDE AND STREOSCOPIC PROJECTORS; [ PHOTOGRAPHIC DEVELOPING, PRINTING, AND RETOUCHING, AND ] ENLARGING APPARATUS, AND PARTS THEREOF; [ PHOTOGRAPHIC EXPOSURE MEASURING INSTRUMENTS; OPTICAL VIEW FINDERS, SHUTTERS; PHOTOGRAMMETRIC INSTRUMENTS AND PARTS THEREOF; ELECTRICALLY CONTROLLED, WEIGHTING AND ASSORTING APPARATUS; MECHANICAL DRAWING INSTRUMENTS AND APPARATUS; SLIDE RULES; TALKING PICTURE MAC...

[ CAMERAS AND PARTS THEREOF; AERO-CAMERAS; MOTION-PICTURE CAMERAS AND PROJECTORS; LANTERN, FILM SLIDE AND STEREOSCOPIC PROJECTORS; PHOTOGRAPHIC DEVELOPING, PRINTING, AND RETOUCHING, AND ENLARGING APPARATUS, AND PARTS THEREOF; PHOTOGRAPHIC EXPOSURE MEASURING INSTRUMENTS; OPTICAL VIEW FINDERS, SHUTTERS; PHOTOGRAMMETRIC INSTRUMENTS AND PARTS THEREOF; ELECTRICALLY CONTROLLED, WEIGHTING AND ASSORTING APPARATUS, MECHANICAL DRAWING INSTRUMENTS AND APPARATUS; SLIDE RULES; TALKING PICTURE MACHINES; PH...