Metal double-sided tooth and slide fastener
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United States of America Patent
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Aug 11, 2015
Grant Date -
Jan 10, 2013
app pub date -
Apr 28, 2010
filing date -
Apr 28, 2010
priority date (Note) -
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Abstract
Provided are a metal double-sided tooth that prevents a flow protruding portion from protruding from the boundary between a coupling concave portion and a body, and a slide fastener using the metal double-sided tooth. The inner side of a coupling concave portion is formed in a substantially bowl shape and a concave portion is formed throughout the boundary between the coupling concave portion and a body and a front side and a rear side of the body. Further, when the metal double-sided tooth is attached to a fastener tape, it is possible to prevent a flow protruding portion generated by caulking a pair of legs from protruding outward from the coupling concave portion or the front side and the rear side of the body until sliding friction is generated in a slider.
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