Kouzou Watanabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Slip prevention particle injection device
- Patent number 6,722,589
- Issue date Apr 20, 2004
- Railway Technical Research Institute
- Kaoru Ohno
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
SLIP PREVENTION PARTICLE INJECTION DEVICE
- Publication number 20040069876
- Publication date Apr 15, 2004
- Kaoru Ohno
- B61 - RAILWAYS