D05B 1/16

Pseudo-lock-stitch seams in which the thread loops do not positively interlock

Official title: Pseudo-lock-stitch seams in which the thread loops do not positively interlock (shoe or welt sewing machines D05B15/02)

D05B1/16 (Pseudo-lock-stitch seams in which the thread loops do not positively interlock) appears on 3 US grants and 3 published applications in this corpus.

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3
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3
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6
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Latest grant
4 Mar 2014