Chan-Hua Feng

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Chia-Yi Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Hand operated bicycle gear transmission device
- Patent number 6,467,368
- Issue date Oct 22, 2002
- National Science Council of Republic of China
- Chan-Hua Feng
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS