Kazuo Yasunami

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Amagasaki, JA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for generating shock waves by means of a supersonic proje...
- Patent number 4,049,367
- Issue date Sep 20, 1977
- Tokyu Sharyo Seizo Kabushiki Kaisha
- Hiroshi Tominaga
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...