Title:
Wall patching device with collapsible membraneous body
United States Patent 3325955
US Patent References:
Box-hanger
- - 1326959

Collapsible rivet-mold
- - 1353813

Fruit handling and sorting apparatus
- - 1520352

Backing unit for wall openings
- - 2638774


Inventors:
Haut, Arthur H.
Publication Date:
06/20/1967
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Assignee:
YORK INSULATION COMPANY INC
Primary Class:
52/514
Other Classes:
428/63
International Classes:
E04F21/02