US Patent D533868 Earphone
Patent D533868 was granted and assigned to Sony on December, 2006 by the United States Patent and Trademark Office.
Is a
Current Assignee
0
Date Filed
July 21, 2005
0
Date of Patent
December 19, 2006
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Patent Application Number
29234613
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Patent Inventor Names
Shiki Koizumi
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Patent Jurisdiction
Patent Number
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