Title:
Machine for and method of corrugating paper
United States Patent 2938568
Inventors:
Cock, William H.
Publication Date:
05/31/1960
Assignee:
ARKELL SAFETY BAG COMPANY
International Classes:
B31F1/22; B31F1/20
US Patent References:
| 2285617 | Machine for waxing and plaiting paper | | | |