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United States Patent 2066393

Inventors:
Dials, Crayton J.
Publication Date:
01/05/1937
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Assignee:
Dials, Crayton J.
Primary Class:
70/39
Other Classes:
70/31, 70/275
International Classes:
E05B51/02; E05B67/22; E05B51/00; E05B67/00