Method for making corrugated board
United States Patent 2008974

Inventors:
David, Weber
Publication Date:
07/23/1935
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Assignee:
DAVID WEBER AND COMPANY
Primary Class:
156/207
Other Classes:
156/522, 493/332, 493/337, 156/292, 156/270, 156/516, 493/463, 493/381, 156/302
International Classes:
B31F1/28; B31F1/20