Masatoshi Nishizawa

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Higashikurume, JP

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Patents Grantslast 30 patents

Information Patent Grant
Warm forging method for cup-shaped pieces
- Patent number 4,312,210
- Issue date Jan 26, 1982
- Kobe Steel Limited
- Masatoshi Nishizawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...