Process for chemically graining lithographic plates
United States Patent 3220899

Inventors:
Leonard, Robert F.
Publication Date:
11/30/1965
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Assignee:
LITHO CHEMICAL & SUPPLY CO INC
Primary Class:
216/104
Other Classes:
252/79.500, 252/79.300, 101/459
International Classes:
B41N3/03
US Patent References:
2942955Aluminum etching composition and method
3010854Pickling solution and method
3085917Chemical cleaning method and material