Title:
Lock
Document Type and Number:
United States Patent 2201957
Inventors:
North, Edwin W.
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Sponsored by: Flash of Genius |
Publication Date:
05/21/1940
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Referenced by:
Export Citation:
Assignee:
NAT LOCK CO
Primary Class:
Other Classes:
70/81
International Classes:
E05B13/10; E05B13/00