Bobbin thread pull-off for sewing machines
United States Patent 3164113

Inventors:
Ketterer, Stanley J.
Publication Date:
01/05/1965
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Assignee:
SINGER CO
Primary Class:
112/242
Other Classes:
112/187
International Classes:
D05B51/00; D05B57/26; D05B59/00; D05B63/00; D05B57/00
US Patent References:
2888892Sewing machines
2966130Sewing machine and loop-taker mechanisms therefor