Mitsuru Watanabe

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Uma-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rolling mill
- Patent number 6,016,679
- Issue date Jan 25, 2000
- Sumitomo Heavy Industries, Ltd.
- Shigeharu Ochi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...