Haruo Yokoyama

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rail grinding apparatus
- Patent number 5,303,514
- Issue date Apr 19, 1994
- Sumikin Osaka Plant Engineering Co., Ltd.
- Hirotsugu Oishibashi
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES