US Patent 7703424 Variable valve actuation system of internal combustion engine
Patent 7703424 was granted and assigned to Hitachi on April, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
November 14, 2006
Date of Patent
April 27, 2010
Patent Application Number
11598786
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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