Jung-Chai Hsieh

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Yuanli Township, TW

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Patents Applicationslast 30 patents

Information Patent Application
STEERING SAFETY MECHANISM FOR BICYCLE
- Publication number 20110133428
- Publication date Jun 9, 2011
- JUNG-CHAI HSIEH
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Automatic speed change device for bicycle gearbox
- Publication number 20040097308
- Publication date May 20, 2004
- Jung-Chai Hsieh
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS