Production of direct positive images and light sensitive element therefor
United States Patent 3055758
Inventors:
Cameron, Mcdonald Charles
Publication Date:
09/25/1962
Other Classes:
524/704, 430/913, 522/40, 430/281.100, 524/732, 522/87, 522/1, 524/733
International Classes:
G03F7/027; G03F7/105; G03F7/09