Yoshiaki Shimizu

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Kameoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gas carburizing method and apparatus
- Patent number 4,950,334
- Issue date Aug 21, 1990
- Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Nobuo Nishioka
- C21 - METALLURGY OF IRON