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Title:
Spring assembly
United States Patent 2126439
Inventors:
Zerbee, Louis J.
Publication Date:
08/09/1938
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Download PDF 2126439
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Assignee:
Zerbee, Louis J.
Primary Class:
297/452.640
Other Classes:
5/655.700, 297/287
International Classes:
A47C7/16
;
A47C7/02