PHOTOGRAPHIC SILVER HALIDE ELEMENTS CONTAINING TWO EQUIVALENT CYAN COUPLERS
United States Patent 3476563
Inventors:
Loria, Anthony
Publication Date:
11/04/1969
Assignee:
EASTMAN KODAK CO
Other Classes:
430/553, 430/476, 430/558
International Classes:
G03C7/305; G03C1/40; G03C7/34