Title:
Photographic material for the direct production of positive photographic images
United States Patent 2875052
US Patent References:
/1303635.html
- - 1303635
Photomechanical printing process and printing material for carrying out the same
- - 2352014
Photographic processes and lightsensitive elements therefor
- - 2456956
Fuchsone dyes in a direct positive photographic process
- - 2490758
/1303635.html
- - 1303635
Photomechanical printing process and printing material for carrying out the same
- - 2352014
Photographic processes and lightsensitive elements therefor
- - 2456956
Fuchsone dyes in a direct positive photographic process
- - 2490758
Inventors:
Edith, Weyde
Publication Date:
02/24/1959
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Export Citation:
Assignee:
Edith, Weyde
Primary Class:
International Classes:
G03C5/50