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United States Patent 2107299
Inventors:
Kilpatrick, Howard M.
Publication Date:
02/08/1938
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Download PDF 2107299
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Assignee:
Kilpatrick, Howard M.
Primary Class:
292/192
Other Classes:
70/418, 292/DIG.041, 70/151R, 70/142
International Classes:
E05B63/12
;
E05B63/00