Apparatus and method for manufacturing barrel coil spring
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United States of America Patent
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Apr 23, 2013
Grant Date -
Sep 30, 2010
app pub date -
Mar 18, 2008
filing date -
Dec 20, 2007
priority date (Note) -
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Abstract
An apparatus and method for manufacturing a barrel coil spring make it possible to coil opposite sides of a spring material at the same time so as to considerably reduce manufacturing processing, thereby remarkably reducing the time required to manufacture the coil barrel spring, thus improving productivity.
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