US Patent 6994171 Two section mast with self-aligning connections
Patent 6994171 was granted and assigned to Helmerich & Payne on February, 2006 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
January 28, 2004
0
Date of Patent
February 7, 2006
0
Patent Application Number
10766624
0
Patent Citations Received
Patent Inventor Names
Alan Orr
0
Mark Trevithick
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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