Hisanobu Niwata

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cushion or trackbed material for use in riding-ground
- Patent number 5,262,453
- Issue date Nov 16, 1993
- Nippon Oil Company, Limited
- Yutaka Watanabe
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES