发明授权
US4343251A Sewing machine 失效
缝纫机

Sewing machine
摘要:
A sewing machine and method of operating same in which the vertically reciprocatable needle bar is mounted in a guide capable of swinging movement back and forth and the guide, in addition, is shiftable by a separate drive upon withdrawal of the needle from the fabric to form locking or anchoring stitching at the end of a stitched seam.
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