Tomomichi Karasuyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Two-part plastic piston with excess resin receiving groove
- Patent number 4,998,461
- Issue date Mar 12, 1991
- Nippon Air Brake Co., Ltd.
- Ichiro Ishiwata
- B60 - VEHICLES IN GENERAL