Blind-stitching presser-foot for zig-zag sewing machines
United States Patent 2162212

Inventors:
Paul, Boguhn
Richard, Bochmann
Publication Date:
06/13/1939
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Assignee:
SINGER MFG CO
Primary Class:
112/151
International Classes:
D05B1/24; D05B29/06; D05B85/06; D05B1/00; D05B29/00; D05B85/00