US Patent 8671580 Low friction rotary knife
Patent 8671580 was granted and assigned to Bettcher Industries on March, 2014 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 8, 2011
Date of Patent
March 18, 2014
Patent Application Number
13314830
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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