Structure of an upper hook provided with a hole and used in sewing machines for making overedge stitches
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United States of America Patent
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-
Jul 21, 1987
Grant Date -
N/A
app pub date -
Mar 6, 1985
filing date -
Jul 31, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An upper hook structure for use in conjunction with a lower hook and a needle to form overedge stitches, in which the hook has a hole, a tip curved in the direction of the lower hook and a shoulder formed in a middle position on the upper hook to stop and guide the thread of the lower hook.
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Cited Art Landscape
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