Assignee

George stephen michael

US·1 granted patent·6 citations·filing 2009–2009

Technology mixB23B1 B24B1 Y10T1

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1 record

0165US8408850B2Twist drill with negative axial rake transition between the lip and the secondary cutting edgeGeorge stephen michael·Filed 2009·Granted Apr 2, 2013·6 cites·9 claims

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