Hisayoshi Koujin

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Roll crossing apparatus for cross-rolling mill
- Patent number 5,291,770
- Issue date Mar 8, 1994
- Mitsubishi Jukogyo Kabushiki Kaisha
- Hisayoshi Koujin
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...