Process for the direct production of positive photographic images
United States Patent 2712995
US Patent References:
Self-toning photographic emulsion
- - 1454209
Color photographic process
- - 1897866
Photographic printing emulsion and its production
- - 2001951
Manufacture of photographic emulsions
- - 2005837
Photographic silver halide emulsions
- - 2186852
Self-toning photographic emulsion
- - 1454209
Color photographic process
- - 1897866
Photographic printing emulsion and its production
- - 2001951
Manufacture of photographic emulsions
- - 2005837
Photographic silver halide emulsions
- - 2186852
Inventors:
Edith, Weyde
Publication Date:
07/12/1955
View Patent Images:
Export Citation:
Assignee:
AGFA AG FUR PHOTOFABRIKATION
Primary Class:
Other Classes:
430/217, 430/202, 430/957
International Classes:
G03C1/485; G03C5/50; G03C7/30
US Patent References:
| 2191502 | Multicolor film and process | |||
| 2352014 | Photomechanical printing process and printing material for carrying out the same | |||
| 2358169 | Photographic printing material | |||
| 2456953 | Photographic reversal processes | |||
| 2456954 | Photographic reversal processes | |||
| 2496940 | Mixed grain photographic process | |||
| 2497875 | Direct positive photographs using aerial fogging developer |
Foreign References:
| FR873507A | ||||
| FR53513A | ||||
| GB446172A | ||||
| GB494088A | ||||
| GB580173A |