US Patent 7528534 Spark plug
Patent 7528534 was granted and assigned to NGK SPARK PLUG CO on May, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 15, 2004
Date of Patent
May 5, 2009
Patent Application Number
10583252
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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