U.S. patent number D891,399 [Application Number D/675,953] was granted by the patent office on 2020-07-28 for headphone. The grantee listed for this patent is Guihua Chen. Invention is credited to Guihua Chen.
United States Patent | D891,399 |
Chen | July 28, 2020 |
Inventors: | Chen; Guihua (Xinshao County, CN) | ||||||||||
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Applicant: |
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Appl. No.: | D/675,953 | ||||||||||
Filed: | January 7, 2019 |
Current U.S. Class: | D14/206; D14/226 |
Current International Class: | 1401 |
Field of Search: | ;D14/206,226,225,188,192,372 ;D29/112 ;2/209 ;181/129,130,135 ;379/430,431 ;381/380,381,374,370,74 ;455/90.3,575.1,569.1 ;345/7,8 |
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