APPARATUS FOR ETCHING A PRINTING PLATE
United States Patent 3494815

Inventors:
Yoshimatsu, Tomiya
Publication Date:
02/10/1970
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Assignee:
Tomiya, Yoshimatsu
Primary Class:
156/345.180
Other Classes:
216/91, 134/153, 216/93, 156/345.230, 134/33, 134/85, 134/89, 216/100
International Classes:
B41C1/00; C23F1/08; B41C1/00; C23F1/02
Foreign References:
GB883993A




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