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United States of America Patent
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N/A
Issued Date -
Apr 7, 2011
app pub date -
May 12, 2009
filing date -
May 15, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
having a small skew angle with respect to the rotation axis can be formed as a ridge at which the flute face intersects a second flank face.
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