| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 02/06/1990 | US4899194 Method of and device for detecting image |
| 01/30/1990 | US4897687 Rolled microfilm printing system and method |
| 01/25/1990 | DE3825054A1 Container for storing slides and the like |
| 01/24/1990 | EP0352239A2 Automatic slide loader into the linear or round type magazines for slide projectors |
| 01/23/1990 | US4896132 Fingerprint display apparatus |
| 01/23/1990 | US4895429 Rear projection apparatus |
| 01/18/1990 | DE3824187A1 Projector |
| 01/17/1990 | CN2051361U Automatic prompting apparatus for film projector |
| 01/16/1990 | US4894724 System and method for producing a flicker-free video image |
| 01/16/1990 | US4894681 Image reader |
| 01/11/1990 | DE3822849A1 Arrangement for preventing still projectors from overheating |
| 01/10/1990 | EP0349947A2 Diffraction optics diffusing screen laminate for full color on-axis viewing |
| 01/10/1990 | EP0349884A2 Full-color zero-order suppressed diffraction optics diffusing screen/louver filter laminate |
| 01/09/1990 | CA1264337A1 Device for the endless projection of a cinematographic film |
| 01/03/1990 | EP0349404A1 Gigantic liquid crystal display |
| 01/03/1990 | EP0348499A1 System and method for producing a flicker-free video image. |
| 01/02/1990 | US4891517 Heat sensitive copying machine |
| 12/28/1989 | WO1989012845A1 Transmissive screen and production thereof |
| 12/27/1989 | CN2050176U Falling device for projecting apparatus optical reflector support rod |
| 12/26/1989 | US4889423 Conversion of high to low frame rate motion picture films |
| 12/20/1989 | EP0346463A1 An improved video display system |
| 12/20/1989 | CN2049788U Slide projector with continuous filmstrip for developing children's intellect |
| 12/13/1989 | EP0346019A1 Film image reader/scanner apparatus |
| 12/13/1989 | CN2049370U Automatic staggered frame setting apparatus for cine-projector |
| 12/13/1989 | CN2049369U Cyclic film projector |
| 12/13/1989 | CN1037970A Illumination system |
| 12/12/1989 | US4887123 Boxlight for projection photoreproduction |
| 12/12/1989 | US4886329 Optical scanning device as well as a microfilm reader-printer with such a device |
| 12/07/1989 | DE3819163A1 Projector |
| 12/05/1989 | US4885605 Negative/positive microfilm discriminating system |
| 12/05/1989 | US4884885 Microfilm aperture card, in particular camera card |
| 11/30/1989 | WO1989011399A1 Retrieving structure for document piece |
| 11/29/1989 | EP0343729A1 Illumination system |
| 11/28/1989 | CA1263260A1 Automatic focus for overhead projector |
| 11/21/1989 | US4882599 Overhead projector |
| 11/15/1989 | CN2047794U Xenon lamp mirror for projector |
| 11/14/1989 | US4881099 Reader printer and image recording apparatus |
| 11/14/1989 | US4880303 Overhead projector |
| 11/14/1989 | US4880292 Transmission viewing screen of image projector apparatus |
| 11/08/1989 | EP0340699A2 Filmhandling apparatus |
| 11/07/1989 | US4879572 Reader-printer |
| 11/07/1989 | EP0326596A4 Catadioptric projection lantern. |
| 11/02/1989 | WO1989010582A1 Overhead projector |
| 11/02/1989 | EP0339376A2 Device for reading positional information on photographic films |
| 11/02/1989 | DE3813035A1 Automatic lamp-changing device for projectors |
| 10/31/1989 | US4878073 Transparent slide protective container |
| 10/25/1989 | EP0338155A2 Slide film arranging and storing device |
| 10/25/1989 | EP0338061A1 Device for forming composite images to review ornamenting collections |
| 10/24/1989 | US4875768 Microfiche reading apparatus |
| 10/24/1989 | US4875588 Method and apparatus for unloading slide projector trays |
| 10/18/1989 | EP0337881A1 System for projecting stereoscopic images on a screen |
| 10/18/1989 | EP0337480A1 Screen forming apparatus |
| 10/18/1989 | CN2046231U Platform type camera of projection |
| 10/18/1989 | CN2046230U Single light source low color temperature automatic replacing film background marrying machine |
| 10/17/1989 | US4875064 Projector apparatus with mirror means |
| 10/10/1989 | US4873552 Reader-printer |
| 10/10/1989 | US4873134 Hot melt ink projection transparency |
| 10/05/1989 | WO1989009431A1 Screen simulator window |
| 10/05/1989 | WO1989009430A1 Film transport device |
| 10/05/1989 | WO1989009429A1 Film transport device |
| 10/04/1989 | EP0335232A2 Method for assuring the tracing of acts of copying and assembly of information carriers |
| 10/03/1989 | CA1262153A1 Wide film transport and register movement |
| 09/28/1989 | DE3808107A1 Control and regulating device for the film transport of a film projector |
| 09/27/1989 | EP0334459A2 Apparatus for displaying map information |
| 09/27/1989 | EP0334231A2 Microfilm searching and reading device |
| 09/27/1989 | CN1035904A Improved video display system |
| 09/27/1989 | CN1035777A Theatre system |
| 09/26/1989 | US4870435 Multiple lens image rotation system |
| 09/26/1989 | US4870318 Projector lamp emitting color light |
| 09/26/1989 | CA1260745A1 Optical transmission sheet |
| 09/21/1989 | WO1989008868A1 Film-strip feed device |
| 09/21/1989 | WO1989008867A1 Device for controlling and adjusting film-strip feed in a film projector |
| 09/21/1989 | WO1989008866A1 Film-strip feed mechanism |
| 09/21/1989 | DE3808044A1 Control and regulating device for the film transport of a film projector |
| 09/20/1989 | EP0333333A1 Display device |
| 09/20/1989 | CN2044739U Frame-type cameracature board |
| 09/19/1989 | US4867555 Retrofocus lens for overhead projector |
| 09/11/1989 | EP0267971A4 Information video installation. |
| 09/07/1989 | DE3905867A1 Lamp housing for a projection apparatus and projection apparatus having such a lamp housing |
| 09/05/1989 | US4864359 Scanning exposure device |
| 09/05/1989 | US4863263 Overhead projector |
| 09/05/1989 | US4863111 Film reel with film-threading tensioning flange |
| 08/23/1989 | CN2043375U Horzontal lens component system |
| 08/22/1989 | US4860061 Multiface image composer |
| 08/22/1989 | US4860060 Microfiche printing system and method |
| 08/22/1989 | US4859994 Closed-captioned movie subtitle system |
| 08/22/1989 | US4859053 Projecting apparatus with spherical screen, more particularly for advertising purposes |
| 08/22/1989 | US4859027 Lenticular lens screen |
| 08/22/1989 | US4858355 Method and apparatus for simultaneously inserting laminar materials into a file sheet |
| 08/16/1989 | CN2042974U Light sampling ic film surveying instrument |
| 08/15/1989 | US4857967 Light source device |
| 08/15/1989 | US4857966 Reader-printer having an image rotation device |
| 08/15/1989 | US4857965 Reader-printer having an image rotation device |
| 08/15/1989 | US4856215 Slide sorters |
| 08/09/1989 | EP0326596A1 Catadioptric projection lantern |
| 08/08/1989 | US4855789 Image forming method and apparatus |
| 08/08/1989 | US4854697 Slides projector |
| 08/02/1989 | EP0326336A2 Overhead type file sheet projectors, and file sheets and jacket holders for use in such projectors |
| 08/02/1989 | EP0325648A1 Projection screen |
| 08/02/1989 | EP0325622A1 Container for shipping and handling feature-length films |