Title:
Color photography with azosubstituted couplers
United States Patent 2434272
Inventors:
Jelley, Edwin E.
Vittum, Paul W.
Publication Date:
01/13/1948
Assignee:
EASTMAN KODAK CO
Other Classes:
430/384, 430/555, 430/557, 430/388, 430/553, 534/876, 534/792, 430/386, 430/562, 430/563, 534/739, 534/742, 430/558, 534/749, 534/822, 430/390
International Classes:
G03C7/333
US Patent References:
| 2316782 | Process of producing multicolor images | | | |
| 2320418 | Color photographs | | | |
| 2342620 | Azo-reversal process of color photography | | | |
| 2227981 | Method of preparation of natural color pictures | | | |
| 2263012 | Process for making natural color photographs | | | |
| 2308023 | Colored photographic image | | | |
| 2297732 | Photographic color process involving the formation of azo dye images | | | |