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Title:
Spring darning attachment for sewing machines
United States Patent 1950076
Inventors:
Anny, Althoff
Publication Date:
03/06/1934
View Patent Images:
Download PDF 1950076
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Assignee:
Anny, Althoff
Primary Class:
112/236
Other Classes:
112/237
International Classes:
D05B27/04
;
D05B27/00