Photomechanical color reproduction
United States Patent 2238483
Inventors:
Yule, John A. C.
Publication Date:
04/15/1941
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Export Citation:
Assignee:
EASTMAN KODAK CO
Primary Class:
Other Classes:
106/287.190, 106/287.180, 106/287.350
International Classes:
G03F3/04; G03F3/00