Yellow-colored magenta-forming couplers
United States Patent 3005712

Inventors:
George, Saunders David
Bowes, Knott Edward
Publication Date:
10/24/1961
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Assignee:
EASTMAN KODAK CO
Primary Class:
Other Classes:
430/555, 430/554, 534/769, 430/562, 430/558
International Classes:
C07D231/52; G03C7/333; C07D231/00