Akira Ohnuki

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Kutakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rolling mill with loosely sleeved roll
- Patent number 4,299,109
- Issue date Nov 10, 1981
- Nippon Steel Corporation
- Hiromi Matsumoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...