Carbon paper and method of making same
United States Patent 2824815

Inventors:
Downs, Martin L.
Dressler, Robert C.
Publication Date:
02/25/1958
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Assignee:
THILMANY PULP & PAPER COMPANY
Primary Class:
Other Classes:
428/486, 427/153
International Classes:
B41M5/10; D21H17/06; D21H17/11; D21H19/18; D21H17/00; D21H19/00