Kazuo Koizumi

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Metal bellows tube, method of producing the same, and flexible tube...
- Patent number 7,556,065
- Issue date Jul 7, 2009
- Ork Corporation
- Kazuo Koizumi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...