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US Patent 8807231 Debris barrier assembly
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Is a
Patent
Date Filed
January 17, 2011
Date of Patent
August 19, 2014
Patent Application Number
13007998
Patent Citations Received
US Patent 11988066 Dynamic underbalance sub
0
Patent Inventor Names
Gordon Thomson
0
Paul Andrew Reinhardt
0
Patent Jurisdiction
United States Patent and Trademark Office
Patent Number
8807231
Patent Primary Examiner
Blake Michener
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