Lock stitch sewing machines
United States Patent 3224397

Inventors:
Ness, William Van C.
Publication Date:
12/21/1965
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Assignee:
SINGER CO
Primary Class:
Other Classes:
112/235, 112/310
International Classes:
D05B55/14; D05B93/00; D05B55/00
US Patent References:
2980044Loose stitching mechanisms for single needle lock stitch machines
Foreign References:
GB106452A