Title:
Machine for and method of corrugating paper
United States Patent 2938568

Inventors:
Cock, William H.
Publication Date:
05/31/1960
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Assignee:
ARKELL SAFETY BAG COMPANY
Primary Class:
Other Classes:
425/335
International Classes:
B31F1/22; B31F1/20
US Patent References:
2285617Machine for waxing and plaiting paper