Taro Kodama

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Nobeoka, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method of explosively expanding tubes
- Patent number 3,939,681
- Issue date Feb 24, 1976
- Asahi Kasei Kogyo Kabushiki Kaisha
- Hirohiko Yoshitomi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...