US Patent 11273501 Step drill bit
Is a
Date Filed
April 18, 2019
0
Date of Patent
March 15, 2022
0
Patent Application Number
16387621
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Patent Citations Received
Patent Inventor Names
Brett A. Parendo
0
Richard Hohnl, Jr.
0
Max R. Sawa
0
James E. Pangerc
0
Ingolfur Ludviksson
0
Alexander R. Greenhill
0
David Hlavac
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
CPC Code
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