Shuzo Yamamoto

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Kashiwashi, Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piece-stacking game device utilizing magnetic forces
- Patent number 4,462,596
- Issue date Jul 31, 1984
- Shuzo Yamamoto
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Composite-picture forming play kit
- Patent number 4,430,824
- Issue date Feb 14, 1984
- Shuzo Yamamoto
- A63 - SPORTS GAMES AMUSEMENTS