Kouki Nanbu

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Nogata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of rolling a metal workpiece
- Patent number 4,307,595
- Issue date Dec 29, 1981
- Nippon Steel Corporation
- Michio Nishikubo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...