Patents for G03D 17 - Dark-room arrangements not provided for in the other groups of this subclass; Portable dark-rooms (135)
10/1991
10/23/1991CN2087351U Film-transferring box used in darkroom
10/02/1991CN2085974U Mini-fast developing machine for color photograph
05/1991
05/28/1991US5019849 Film changing tent with internal support structure
01/1991
01/15/1991US4985721 Film change bag
07/1990
07/24/1990US4943823 Structure of washing conveyance roller for photosensitive material processing machine
03/1990
03/06/1990US4906835 Light sensing and emitting devices with a safelight
01/1990
01/03/1990EP0348578A1 Device for photographic photocomposition and/or reproduction
11/1989
11/15/1989CN2047802U Photoelectric pen
07/1989
07/12/1989CN2041082U Timer for darkroom
03/1989
03/29/1989CN2035101U Acid and alkali resisting electric heater
02/1989
02/08/1989EP0302655A2 Light sensing and emitting devices
01/1989
01/04/1989CN2030340U Lighting microtome
12/1988
12/14/1988CN87213095U Enlarging machine for colour and single color with push and pull filter type
10/1988
10/26/1988CN87211378U 135 type sunlight developing pot
06/1988
06/08/1988CN86203666U Pot for developing film under light
03/1988
03/15/1988US4731627 Enclosure for loading film
12/1987
12/08/1987US4711563 Portable collapsible darkroom
09/1987
09/08/1987US4691953 Sheet gripper tongs
03/1987
03/17/1987US4650987 Chest for the storage of light sensitive film material or paper
03/11/1987CN85203660U Portable open-air enlarging printer
01/1986
01/29/1986CN85200397U Film 120 developing can without the need of dark room
11/1985
11/12/1985US4552452 Daylight enlarger
01/1985
01/01/1985US4491410 Lighting system for use in a photographic enlarger
01/1984
01/18/1984EP0098806A1 Daylight enlarger
03/1982
03/17/1982EP0047418A1 Dark-room lamp
04/1981
04/14/1981CA1099070A1 Portable darkroom
09/1980
09/16/1980US4222655 Compact portable darkroom
04/1980
04/08/1980US4196953 Darkroom module
12/1979
12/18/1979US4179207 Daylight loader cover device for photographic printing machine
09/1979
09/05/1979EP0003929A2 Photographic process for the production of drawings on a support covered with a photographic emulsion, realised and developed in daylight, product and apparatus therefor
06/1979
06/26/1979US4159171 Portable darkroom
04/1978
04/04/1978US4083061 Portable darkroom
01/1978
01/31/1978US4071883 Multi-purpose laboratory light box
05/1977
05/31/1977US4026649 Portable processing station
07/1976
07/27/1976US3971929 Safelight filter
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