Shigeki Ikehata

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Amagasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Drawn tubing manufacturing process and apparatus therefor
- Patent number 4,565,664
- Issue date Jan 21, 1986
- Sumitomo Metal Industries, Ltd.
- Shigeki Ikehata
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...