Yoshimi Yazaki

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Itabashi, Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Resin coated steel pipe and the process and equipment for its produ...
- Patent number 3,941,087
- Issue date Mar 2, 1976
- Yoshimi Yazaki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...