| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 06/01/1976 | US3960337 Offset drive pin adaptors for film projectors, film spools, and 35mm to 16mm converters |
| 06/01/1976 | US3960042 Microfiche reader-printer |
| 05/25/1976 | US3958875 Apparatus for controlling slide projectors |
| 05/25/1976 | US3958874 Picture information retrieving system |
| 05/25/1976 | US3958348 Slide filing plate |
| 05/11/1976 | US3955779 Cartridge with removable take-up sub-cartridge |
| 05/11/1976 | US3955778 Tape cassette |
| 05/04/1976 | US3954214 Film projector |
| 04/27/1976 | US3953123 Transport apparatus for an automatic micro-image viewer printer machine |
| 04/27/1976 | US3953120 Molded chassis for a film strip projector |
| 04/27/1976 | US3953117 Single image plane two color photochromic display technique |
| 04/27/1976 | US3952969 Drive control mechanism for motion picture projector |
| 04/27/1976 | US3952434 Slide-frame |
| 04/20/1976 | US3951543 Manually operated reader-printer |
| 04/20/1976 | US3951537 Slide projector control device |
| 04/20/1976 | US3951536 Film projection system |
| 04/20/1976 | US3951535 Low profile episcopic projector |
| 04/20/1976 | US3951534 Short throw, oblique incidence, visual transparency projector |
| 04/20/1976 | US3951532 Microfiche reader employing dual incremental advancing means |
| 04/20/1976 | US3951518 Projector and projection screen assembly |
| 04/20/1976 | US3951357 Automatic cartridge tape draw-out device |
| 04/13/1976 | US3950769 Compact camera and viewer apparatus |
| 04/13/1976 | US3950210 Vacuum press |
| 04/13/1976 | US3950086 Dental light reflector and visual-audio analgesic assembly |
| 04/13/1976 | US3949505 Quickly interchangeable slide mounts |
| 03/30/1976 | US3947187 Photographic film drive system employing inertia dumper |
| 03/30/1976 | US3947104 Compact imaging apparatus and projection display device |
| 03/30/1976 | US3947103 Low profile episcopic projector and opaque materials therefor |
| 03/30/1976 | US3947102 Apparatus for retrieving microimages |
| 03/30/1976 | US3947098 Light projector device, particularly for eyesight examination tests |
| 03/23/1976 | US3946410 Electromagnetic trigger device |
| 03/23/1976 | US3946222 Automatic focus with variable magnification |
| 03/16/1976 | US3944352 Heat absorbing glasses |
| 03/16/1976 | US3944351 Apparatus for superimposing a plurality of images |
| 03/16/1976 | US3944350 Microfiche and reader |
| 03/16/1976 | US3944155 Ribbon spool |
| 03/16/1976 | US3944148 Paper cassette |
| 03/09/1976 | US3943029 Slide frame-welding apparatus |
| 03/09/1976 | US3942885 Microfiche reader |
| 03/09/1976 | US3942883 Cinematograph film transport mechanisms |
| 03/09/1976 | US3942882 Film transport speed controlling device |
| 03/09/1976 | US3942869 Projection screen unit |
| 03/09/1976 | US3942868 Cine projection screen |
| 03/09/1976 | US3942743 Information tape cassette |
| 03/02/1976 | US3941981 Roll film mark counter |
| 03/02/1976 | US3941978 Automatic film searching and retrieval system |
| 03/02/1976 | US3941467 Optical projector/reader |
| 03/02/1976 | US3941466 Vernier carriage control |
| 03/02/1976 | US3941465 Film handling apparatus control system |
| 02/24/1976 | US3940778 Photograph and negative holder |
| 02/24/1976 | US3940209 Projector case assembly |
| 02/24/1976 | US3939975 Projection cassette |
| 02/17/1976 | US3938886 Slide projector controllable of its projection time |
| 02/17/1976 | US3938876 Front projection screen made from a transparent material |
| 02/10/1976 | US3937421 Asynchronous high-speed pneumatic film transport mechanism |
| 02/10/1976 | US3937411 Tape roll hold-down device |
| 02/03/1976 | US3936596 Optical projection apparatus |
| 02/03/1976 | US3936167 Device for automatically controlling a protective filter in a film projector |
| 02/03/1976 | US3936137 Illuminated reticle projection system |
| 02/03/1976 | US3936010 Cassette for film and driving means thereof |
| 01/27/1976 | US3934367 Exchangeable frame for transparencies |
| 01/13/1976 | US3932733 Automatic focusing of an optical system |
| 01/13/1976 | US3932702 Optical system for the display of visual images |
| 01/13/1976 | US3932033 Cinematograph projectors |
| 01/06/1976 | US3930721 Slidable mirror for adjustable speed projector with synchronized sound recorder |