Heiichi Isawa

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Sendai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power-saving system for bowling machine
- Patent number 4,724,506
- Issue date Feb 9, 1988
- Katsuyama Kigyo Kabushiki Kaisha
- Heiichi Isawa
- A63 - SPORTS GAMES AMUSEMENTS