US Patent 7686128 Speaker diaphragm and speaker
Patent 7686128 was granted and assigned to Onkyo on March, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
March 9, 2007
Date of Patent
March 30, 2010
Patent Application Number
11716119
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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