US Patent 7931409 Wheel bearing apparatus
Patent 7931409 was granted and assigned to NTN Corporation on April, 2011 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
October 16, 2009
Date of Patent
April 26, 2011
Patent Application Number
12580485
Patent Inventor Names
Hiroto Suma
0
Keizo Kobayashi
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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