LOOPER DRIVE FOR BUTTONHOLE SEWING MACHINES OR THE LIKE
United States Patent 3457888
Inventors:
Wider, Eberhard
Publication Date:
07/29/1969
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Assignee:
Union, Special Maschinenfab
Primary Class:
Other Classes:
112/157
International Classes:
D05B1/06; D05B57/02; D05B1/00; D05B57/00; D05B57/04; D05B1/06; D05B1/10