Ching-Hung Tsai

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Taichung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Three-dimensional jigsaw puzzle
- Patent number 6,655,685
- Issue date Dec 2, 2003
- Ching-Hung Tsai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Multifunctional exercise device
- Patent number 6,110,082
- Issue date Aug 29, 2000
- Ching-Fa Tsai
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
THREE-DIMENSIONAL JIGSAW PUZZLE
- Publication number 20030168804
- Publication date Sep 11, 2003
- Ching-Hung Tsai
- A63 - SPORTS GAMES AMUSEMENTS