Overlock sewing machine having upper and lower looper thread takeup lever drive mechanisms
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United States of America Patent
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-
Aug 24, 1993
Grant Date -
N/A
app pub date -
Feb 28, 1992
filing date -
Mar 1, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An overlock sewing machine which is arranged such that a lower thread take-up lever is disposed independently of an upper looper thread take-up lever and that a lower looper thread take-up lever drive mechanism is fabricated independently of an upper thread take-up lever drive mechanism and adapted to connect thereto an adjust means for adjusting the amount of thread fed from the lower looper thread take-up lever.
First Claim
Family
International Classification(s)
Cited Art Landscape
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