Ding-Tsai Yeh

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Ball feeding device of a ball washing machine
- Patent number 5,836,477
- Issue date Nov 17, 1998
- Ding-Tsai Yeh
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Machine for cleansing a playball
- Patent number 5,551,118
- Issue date Sep 3, 1996
- Ding-Tsai Yeh
- A63 - SPORTS GAMES AMUSEMENTS