Title:
METHOD AND APPARATUS FOR PREPARING FIBROUS MATERIAL IN BOARD OR SHEET FORM TO ENABLE DEFORMATION THEREOF,ESPECIALLY BENDING THEREOF INTO CORNERS
Document Type and Number:
United States Patent 3481813
Inventors:
Wiggers, Don J.
Plaque It!
Sponsored by: Flash of Genius |
Publication Date:
12/02/1969
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Referenced by:
Export Citation:
Assignee:
ENGEL EQUIPMENT INC
Primary Class:
Other Classes:
493/354, 156/257, 425/290, 425/305.100, 156/219, 156/527
International Classes:
B26D3/08; B31F1/20; B32B31/00
US Patent References: