| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 01/22/1980 | US4184755 Image projection systems |
| 01/22/1980 | US4184754 Overhead projector |
| 01/22/1980 | US4184745 Translucent screen |
| 01/15/1980 | US4183634 Rear projection viewer having small auxiliary screen |
| 01/01/1980 | US4181930 Lamp reflector unit |
| 01/01/1980 | US4181427 Optical projection apparatus |
| 01/01/1980 | US4181404 Microfiche reader projection screen |
| 01/01/1980 | CA1068951A Photographic film slide frame |
| 12/18/1979 | US4179199 Combination motion picture camera and viewing apparatus |
| 12/18/1979 | US4179079 Process and an apparatus for loading a cassette with an endless roll |
| 12/04/1979 | US4176804 Reel for tape |
| 12/04/1979 | US4176776 Film-transport mechanism for motion-picture projectors, and the like |
| 12/04/1979 | CA1067313A1 Programming cam indexing mechanism |
| 11/27/1979 | US4175719 Microfilm cassette module |
| 11/27/1979 | US4175344 Viewer for the successive viewing of a number of transparent images |
| 11/20/1979 | US4174891 Microfilm reader/printer |
| 11/20/1979 | US4174890 Electronically controlled microfilm photographic image utilization device |
| 11/20/1979 | US4174889 Travel monitor |
| 11/20/1979 | US4174883 Rear projection screen |
| 11/06/1979 | US4173399 Compact optical viewer for microfiche or cassette |
| 10/31/1979 | EP0005072A1 Slide transport system for a multiple optics slide projector and multiple slide projector equiped with same |
| 10/30/1979 | US4172657 Variable magnification device |
| 10/30/1979 | CA1065476A1 Magnetic recording and reproducing device |
| 10/23/1979 | US4172219 Daylight projection screen and method and apparatus for making the same |
| 10/23/1979 | US4171882 Light reflective projection system |
| 10/23/1979 | CA1064979A1 Film strip projection equipment |
| 10/09/1979 | US4170412 Microfilm adaption unit for photocopier machines |
| 10/09/1979 | US4170408 Microfilm viewer |
| 10/09/1979 | US4170081 Novel microfilm jacket |
| 10/02/1979 | US4169667 Film buffer for motion picture projectors |
| 10/02/1979 | US4169658 Picture screen |
| 10/02/1979 | US4169566 Film supply and take-up system for motion picture projector |
| 09/25/1979 | US4169238 Movie light, low voltage incandescent lamp unit for use therewith, and reflector |
| 09/25/1979 | US4169237 High voltage movie light and incandescent lamp unit for use therewith |
| 09/25/1979 | US4168887 Microfiche having integral indexing means |
| 09/25/1979 | CA1063211A1 Automatic microfilm handling apparatus |
| 09/18/1979 | US4168115 Golf game projector |
| 09/18/1979 | US4167842 Reader-filler machine for microfilm jackets operable in insertion or structuring mode |
| 09/11/1979 | US4167311 Projection system and process |
| 09/11/1979 | US4167310 Lamp assembly and power module for fanless microfiche reader |
| 09/04/1979 | US4166700 Film thickness detector |
| 09/04/1979 | US4166694 Method for optically distorting readout reticles |
| 09/04/1979 | CA1061615A2 Motion picture film cartridge |
| 08/28/1979 | US4166239 Roll film drive control arrangement |
| 08/21/1979 | US4165177 Rear projection microfilm reader/printer |
| 08/21/1979 | US4165161 Multiple optics slide projector |
| 08/21/1979 | US4165160 Lamp assembly and power module for fanless microfiche reader |
| 08/21/1979 | US4165154 Projection screen assembly |
| 08/21/1979 | US4165153 Particle dispersion |
| 08/21/1979 | US4165050 Reel holding hub assembly |
| 08/21/1979 | CA1060688A1 Target screen assembly with synchronised movement |
| 08/14/1979 | US4164367 Film transport system for microfilm reader |
| 08/07/1979 | US4163611 Microfiche reader |
| 08/07/1979 | US4163610 Rear/remote-screen projector |
| 07/31/1979 | USRE30058 Shuttle speed control device |
| 07/31/1979 | US4162829 Photographic film drive system employing inertia dumper/energy dissipater |
| 07/31/1979 | CA1059352A1 Daylight projection screen and method and apparatus for making the same |
| 07/24/1979 | US4162047 Hub for use in a tape casette |
| 07/17/1979 | US4161353 Secondary image reproduction device |
| 07/03/1979 | US4159869 Cursor for use in microfilm reader |
| 07/03/1979 | US4159868 Film loop forming device |
| 06/26/1979 | US4159417 Electronic book |
| 06/26/1979 | US4159167 Sound motion picture projection apparatus |
| 06/26/1979 | US4159162 Silencer for electric motion picture screens |
| 06/26/1979 | CA1057099A1 Lens assembly and method of making |
| 06/05/1979 | US4157570 TV-Cine conversion projector |
| 06/05/1979 | US4157214 Apparatus for showing microdocuments |
| 06/05/1979 | US4156978 Microfiche carrier |
| 06/05/1979 | CA1055977A1 Slot load projector |
| 05/29/1979 | US4156901 Projection unit having removable retention member |
| 05/29/1979 | US4156561 Desk level overhead projector |
| 05/22/1979 | US4155625 Reflector construction |
| 05/22/1979 | US4155514 Continuous loop tape cartridge including rewind means |
| 05/16/1979 | EP0001951A1 Projection apparatus permitting the recording of the projected image of an object |
| 05/15/1979 | US4154515 Multiple function microfiche and film recording and viewing system |
| 05/08/1979 | US4153361 Web cassette with cartridge load |
| 05/08/1979 | US4153353 Film transport for a viewer |
| 05/01/1979 | US4152722 Retrieval system |
| 05/01/1979 | US4152047 Projection screen means |
| 05/01/1979 | US4151963 Long wearing movie film bobbins with floating hubs |
| 05/01/1979 | CA1053638A1 Device for delivery of tape material |
| 04/24/1979 | US4151582 Point array sheet lighting apparatus |
| 04/24/1979 | US4150887 Switching device for projection lamp |
| 04/24/1979 | US4150886 Motion picture projector system |
| 04/24/1979 | CA1052995A1 Combination furniture for audio-visual teaching |
| 04/17/1979 | US4149784 Roll film reader/printer with manually insertable discrete film |
| 04/17/1979 | US4149781 Sealed, super 8, optical sound, projection means |
| 04/17/1979 | US4149775 Zoom lens apparatus with adjustable aperture |
| 04/10/1979 | US4148569 Lens unit for motion picture projector and others |
| 04/10/1979 | US4148568 Mirror mechanism for a film projector |
| 04/10/1979 | US4148453 Projector stacking stand |
| 04/03/1979 | US4147408 Back projection viewing screen |
| 04/03/1979 | US4146985 X-ray film mounts |
| 04/03/1979 | CA1051701A1 Film cartridge for motion picture viewer |
| 03/27/1979 | US4146315 Lens moving device for opaque reader |
| 03/27/1979 | US4146314 Audio visual system having recorded moving light pointer and method |
| 03/27/1979 | CA1051249A1 Compact lensfiche camera and projector |
| 03/27/1979 | CA1051248A1 Method and apparatus for framing photographic film sections in slide frames |
| 03/27/1979 | CA1051237A1 Front projection screen |
| 03/20/1979 | US4145131 Compact camera and viewer apparatus |