US Patent D640291 Conical cutting element

Patent D640291 was granted and assigned to The Charles Machine Works Inc. on June, 2011 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

The Charles Machine Works Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D640291

Patent Inventor Names

Michael C. Walgren0

Vernon T. Stellman0

L. Shane Ingram0

Date of Patent

June 21, 2011

Patent Application Number

29376708

Date Filed

October 11, 2010

Patent Citations Received

‌

US Patent D1020823 Milling bit

Patent Primary Examiner

‌

Mark Goodwin

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