Overlock sewing machine
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United States of America Patent
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Feb 28, 2017
Grant Date -
Dec 17, 2015
app pub date -
Jun 10, 2015
filing date -
Jun 11, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An overlock sewing machine includes a first switching part for switching an interlocked state where an upper knife drive part and an upper knife are interlocked and a released state where the upper knife drive part and the upper knife are not interlocked; a second switching part for switching the upper knife between a projection position and a retreat position; and an operation part for switching the first switching part and the second switching part between a first mode, a second mode, and a third mode.
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Family
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