73212490
Apr 23, 1979
Jun 15, 1982
Photographic Cameras and Parts Thereof, Film Developing Tanks and Racks Therefor, Film Printers, Film Enlarging Printers, High-Speed Film Printers, Focusing Systems for Enlargers Comprising Mounts and Mirrors, Enlarger Easels, Photomasks for Negatives, Slide Holders, Lens Adaptors, Camera Extension Tubes, Lens Shades, Lens Shade and Filter Holder Combinations, Tripods and Attachments Therefor, Film Punches, Film Washers, Film and Negative Viewers, Optical Glass Filters, Cluster Lenses, and Photographic Objectives of All Types
Electrical and Scientific Apparatus