Photographic process for the direct production of positive images
United States Patent 2699393
US Patent References:
Photomechanical printing process and printing material for carrying out the same
- - 2352014
Improvers for photographic emulsions
- - 2403927
Treatment of developed silver images with mercapto-tetrazole and triazole compounds
- - 2432506
Photographic elements bearing silver halide emulsion layer and adjacent light-insensitive colloid layer containing silver derivatives of azoles
- - 2432864
Photomechanical printing process and printing material for carrying out the same
- - 2352014
Improvers for photographic emulsions
- - 2403927
Treatment of developed silver images with mercapto-tetrazole and triazole compounds
- - 2432506
Photographic elements bearing silver halide emulsion layer and adjacent light-insensitive colloid layer containing silver derivatives of azoles
- - 2432864
Inventors:
Edith, Weyde
Publication Date:
01/11/1955
View Patent Images:
Export Citation:
Assignee:
AGFA AG FUR PHOTOFABRIKATION
Primary Class:
Other Classes:
430/965, 430/248, 430/233
International Classes:
G03C8/24; G03C8/00
Foreign References:
| FR879995A | ||||
| GB561875A | ||||
| GB573745A |