Yoshinori Katoh

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Mie, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for joining piping materials
- Patent number 4,956,904
- Issue date Sep 18, 1990
- Mie Horo Co., Ltd.
- Hidetoshi Yamamoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...