Tsuguya Okubo

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Fukuoka-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Valve device using pipes and method of manufacturing it
- Patent number 5,829,468
- Issue date Nov 3, 1998
- Toto Ltd.
- Hachihei Watanabe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...