Hajime Ishi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Roll for rolling mill and roll-shift type rolling mill
- Patent number 5,640,866
- Issue date Jun 24, 1997
- Ishikawajima-Harima Heavy Industries Co., Ltd.
- Kazuyuki Satoh
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...