US Patent 7703480 Composite tubes and method of manufacturing same
Patent 7703480 was granted and assigned to Hillerich & Bradsby Co. on April, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 1, 2005
Date of Patent
April 27, 2010
Patent Application Number
11194178
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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