Sam Chang

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Taichung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Collapsible recumbent exercise bicycle apparatus
- Patent number 6,001,046
- Issue date Dec 14, 1999
- LifeGear, Inc.
- Sam Chang
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Exercising machine having double-shaft type drive system with high...
- Publication number 20030078140
- Publication date Apr 24, 2003
- Sam Chang
- A63 - SPORTS GAMES AMUSEMENTS