U.S. patent number D566,688 [Application Number D/277,836] was granted by the patent office on 2008-04-15 for headphone. Invention is credited to Ching-chi Wang.
United States Patent | D566,688 |
Wang | April 15, 2008 |
Inventors: | Wang; Ching-chi (Chashan, Donnguan, Guangdong, CN) |
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Appl. No.: | D/277,836 |
Filed: | March 12, 2007 |
Current U.S. Class: | D14/206 |
Current International Class: | 1401 |
Field of Search: | ;D14/144,147,165,192,198,205-206,223 ;D29/112 ;2/209.3,410 ;181/129-130 ;381/370-371,374,376,377-379 ;379/430,440,433.01 ;D21/483,516-517 ;455/565,575.2 ;29/594 |
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