Title:
Line tightener
Document Type and Number:
United States Patent 1896415
Inventors:
Mcdonald, Pyles Robert
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Publication Date:
02/07/1933
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Referenced by:
Export Citation:
Assignee:
James, Kammerdiner A.
Primary Class:
Other Classes:
24/136A, 242/154, 254/394
International Classes:
E21B19/02; E21B19/00