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US4196683A Sewing machine with a stitch pattern selecting device 失效
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Sewing machine with a stitch pattern selecting device
摘要:
In a sewing machine with a stitch pattern selecting device according to the invention, the selection of stitch patterns being carried out by axial movement of a cam follower along a pack of pattern cams, such movement resulting from control by a reversible electric motor, and memory means for generating follower control signals corresponding to input pattern selection signals.
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