Masahiko Ooshima

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Kitakyusyu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for wear-resistant compound roll manufacture
- Patent number 5,225,007
- Issue date Jul 6, 1993
- Hitachi Metals Ltd.
- Toshiyuki Hattori
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...