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Tsang-Ping Chen
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Taichung Hsien, TW
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last 30 patents
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Patent Grant
Bicycle frame for concealing derailleur wire
Patent number
7,114,738
Issue date
Oct 3, 2006
Yoan Technologies Co., Ltd.
Tsang-Ping Chen
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Patents Applications
last 30 patents
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Patent Application
BICYCLE FRAME FOR CONCEALING DERAILLEUR WIRE
Publication number
20060232041
Publication date
Oct 19, 2006
Tsang-Ping Chen
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS