Kenzo Tokuoka

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Nishinomiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Base structure of a turnout
- Patent number 6,257,494
- Issue date Jul 10, 2001
- Yamato Kogyo Co., Ltd.
- Kenzo Tokuoka
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES