US Patent 7757720 Ribbed spiral pipe
Patent 7757720 was granted and assigned to Pacific Roller Die on July, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 26, 2007
0
Date of Patent
July 20, 2010
0
Patent Application Number
12005434
0
Patent Inventor Names
Robert F. Miller
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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