Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; Apparatus or arrangements employing analogous techniques using waves other than optical waves; Accessories therefor › G03B 23 - Devices for changing pictures in viewing apparatus or projectors
Patents for G03B 23 - Devices for changing pictures in viewing apparatus or projectors (977)
10/1990
10/25/1990DE3912815A1 Slide projector for long magazines - has two drive sprockets for moving two magazines in line
10/09/1990US4961641 Slide projector with ergonomic slide selection and access
10/09/1990CA1275003A1 Soft edge mask
09/1990
09/26/1990CN2062863U Multifunctional case for broadcast tv
09/26/1990CN2062862U Input device of automatic reading appliance
09/19/1990EP0225387B1 Slide archival storage and retrieval system
09/13/1990DE3907796A1 Slide projector for bar (long) magazines
09/11/1990CA1273857A1 Container for accommodating a pile of pictures
09/05/1990CN1009497B Device for storing and handiling slides
08/1990
08/29/1990CN2061300U Automatic slides setting device by remote control for slide projector
08/16/1990EP0382679A1 Device for the projection of a slide and display of information recorded on a data carrier of the slide
08/14/1990CA1272623A1 Picture viewing device
07/1990
07/24/1990US4943153 Guide means for random access retrieval apparatus
07/11/1990EP0376992A1 Device for cyclically rearranging stacks of sheets
07/10/1990US4939860 Cyclic rearrangement device for stacked rectangular sheets
07/10/1990CA1271327A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
07/04/1990CN2058998U Projector capable of producing dynamic image
06/1990
06/12/1990US4933690 Slide changing apparatus with slide jam protection
06/12/1990US4932644 Sheet feeding process
05/1990
05/29/1990CA1269530A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
05/29/1990CA1269529A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
05/17/1990WO1990005323A1 Slide changing apparatus with slide jam protection
05/09/1990EP0367180A1 Slide changing apparatus with slide jam protection
04/1990
04/30/1990CA2001316A1 Slide changing apparatus with slide jam protection
04/19/1990WO1990004208A1 Movable support for transparencies
04/19/1990WO1990004206A1 Film cassette
04/18/1990EP0201594B1 Device for cyclically rearranging a pile of rectangular or square sheets
04/05/1990WO1990003596A1 Slide projector
03/1990
03/28/1990EP0204756B1 Device for cyclically rearranging a pile of rectangular or square sheets
03/21/1990EP0201551B1 Device for cyclically rearranging a pile of rectangular or square sheets
03/07/1990EP0204757B1 Device for cyclically rearranging a pile of rectangular or square sheets
03/07/1990EP0203154B1 Device for cyclically rearranging a pile of rectangular or square sheets
03/07/1990EP0202307B1 Container for piles of pictures
02/1990
02/28/1990EP0355130A1 Storage container for a pile of sheets
02/28/1990EP0203168B1 Container for a pile of sheets
02/20/1990US4902193 Device for the rearrangement of a pile of pictures
02/13/1990US4899475 Container for a pile of sheets
02/06/1990US4897946 Device for the cyclic rearrangement of a pile of rectangular or square sheets
01/1990
01/31/1990EP0202283B1 Device for cyclically rearranging a pile of sheets
01/24/1990EP0204729B1 Device for cyclically rearranging a pile of sheets
01/24/1990EP0201552B1 Device for rearranging a pile of photographic sheets
01/24/1990EP0201550B1 Device for rearranging a pile of sheets
12/1989
12/06/1989EP0344251A1 Device for cyclic modification of the distribution of a pile of sheets
11/1989
11/30/1989DE3924306A1 Slide dissolve (change-over, fade) projection method with one projector having one objective or without objective with two parallel drive shafts as well as two special slide magazines
11/29/1989EP0343213A1 Sheet changer
11/22/1989CN2048196U Amplitude selector of photochrome and stamp collecting
11/14/1989US4879825 Cyclic rearrangement apparatus for stacked rectangular sheets
10/1989
10/31/1989US4878073 Transparent slide protective container
10/24/1989US4875588 Method and apparatus for unloading slide projector trays
10/19/1989WO1989009947A1 Device for cyclically rearranging stacks of sheets
10/11/1989CN2045858U Multi-functional stereoscopic view-watching
09/1989
09/28/1989DE3808759A1 Slide projecting device (slide projector)
09/26/1989US4869006 Device for the cyclic rearrangement of a pile of sheets
09/26/1989CA1260263A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
09/26/1989CA1259795A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
09/12/1989US4865442 Slide projector system
09/12/1989CA1259241A1 Container for a pile of pictures
09/05/1989CA1258972A1 Container for accommodating a pile of pictures
08/1989
08/30/1989EP0203155B1 Device for cyclically rearranging a pile of rectangular or square sheets
08/29/1989US4860473 Device for the cyclic rearrangement of a pile of rectangular or square sheets
08/29/1989US4860472 Picture viewing device
08/15/1989US4858003 Mechanism for handling slides and film strips
08/08/1989US4854697 Slides projector
07/1989
07/27/1989WO1989006890A1 Mechanism for handling slides and film strips
07/27/1989DE3801119A1 Slide projector
07/26/1989EP0324738A1 Apparatus and process for retrieving images stored on windowed discs
07/18/1989CA1257491A1 Picture viewer
07/13/1989DE3744060A1 Optical arrangement for high-performance slide projectors
07/04/1989CA1256695A1 Device for the cyclic rearrangement of a pile of rectangular or square sheets
06/1989
06/13/1989CA1255499A1 Device for the rearrangement of a pile of pictures
06/06/1989CA1255098A1 Device for rearranging a pile of sheets
06/01/1989WO1989004991A1 Device for cyclic modification of the distribution of a pile of sheets
06/01/1989WO1989004990A1 Storage container for a pile of sheets
06/01/1989WO1989004989A1 Sheet changer
05/1989
05/23/1989US4832482 Film transparency slide carrier and conveyor system for front screen projection system
05/17/1989EP0315733A1 Container for a stack of pictures
05/11/1989DE3736759A1 Plate stacker
05/11/1989DE3735573A1 Fading device for slide projectors which comes into operation at the time of the picture change
05/03/1989EP0313573A1 Apparatus for projections of slides
05/02/1989CA1253339A1 Device for the cyclic rearrangement of a pile of sheets
04/1989
04/04/1989US4817314 Container for accommodating a pile of pictures
03/1989
03/29/1989EP0308439A1 Still view projector
03/28/1989US4817023 Slide magazine provided with memory means for slide film printing system
02/1989
02/23/1989DE3808539C1 Transparency (slide) presentation device
02/14/1989US4805087 Selective microfiche display equipment
01/1989
01/31/1989US4801016 Planar element storage and display apparatus
01/26/1989WO1989000716A1 Apparatus and process for retrieving images stored on windowed discs
01/17/1989US4798015 Container for a pile of pictures
12/1988
12/29/1988DE3719510A1 Method for controlling brightness and transport in slide projectors
12/27/1988US4793761 Rapid automatic slide retrieval device
12/22/1988DE3717945A1 Twin slide projector
12/08/1988DE3717946A1 Slide projector with rotary magazine
12/01/1988WO1988009224A1 Method and apparatus for unloading slide projector trays
11/1988
11/29/1988US4787162 Device for the cyclic rearrangement of a pile of rectangular or square sheets
11/17/1988WO1988007221A3 Still view projector
11/17/1988EP0174931B1 Multiple projection optics slide projection apparatus using a circular slide tray, having fixed-position slide gates
11/15/1988US4784556 Device for the rearrangement of a pile of pictures
11/15/1988US4783919 Device for the cyclic rearrangement of a pile of sheets
11/15/1988CA1244938A1 Magnetic tape cassette
11/15/1988CA1244647A1 Method for presentation of information in a plurality of sheetshaped information carriers and a device for the accomplishment of the method
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