US Patent 7420139 Glow plug
Patent 7420139 was granted and assigned to NGK SPARK PLUG CO on September, 2008 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
February 18, 2005
Date of Patent
September 2, 2008
Patent Application Number
10556053
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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