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Head elevating device for sewing machines
United States Patent 2398696
Inventors:
Colegrove, Charles E.
Publication Date:
04/16/1946
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Download PDF 2398696
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Assignee:
SEARS ROEBUCK & COMPANY
Primary Class:
112/260
Other Classes:
112/217.100, 312/28
International Classes:
D05B75/06
;
D05B75/00