73225920
Aug 2, 1979
Jan 25, 1983
Glass and Film Contact Screens and Reticles for Photo-Litho, Photo-Engraving, and Gravure, and for the Reproduction of Photographs; Photographic Cameras and Filters; Apparatus for Dividing and Graduating; Apparatus and Devices for the Reproduction of Images in Industry-Namely, Cameras, Reprographing Apparatus, Projectors, Printing Frames; Bromographs; Enlargers; Scanners; Color Selectors and Photo-Electric Timers
Electrical and Scientific Apparatus