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HSINCHU CITY, TW
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Patents Grants
last 30 patents
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Patent Grant
Bowed stringed instrument bowing exercise apparatus and manufacturi...
Patent number
9,302,151
Issue date
Apr 5, 2016
Yu-Hua Chen
A63 - SPORTS GAMES AMUSEMENTS
Patents Applications
last 30 patents
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Patent Application
BOWED STRINGED INSTRUMENT BOWING EXERCISE APPARATUS AND MANUFACTURI...
Publication number
20150190674
Publication date
Jul 9, 2015
YU-HUA CHEN
A63 - SPORTS GAMES AMUSEMENTS