US Patent 8646520 Precision marking of subsurface locations
Patent 8646520 was granted and assigned to Baker Hughes on February, 2014 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
March 15, 2011
Date of Patent
February 11, 2014
Patent Application Number
13048473
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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