Kouich Yamauch

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ceramics bearing
- Patent number 4,770,549
- Issue date Sep 13, 1988
- Koyo Seiko Co., Ltd.
- Kazuo Rokkaku
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...