Syunji Aono

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Hamamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Covering film for casting process by vacuum sealed molding
- Patent number 4,199,641
- Issue date Apr 22, 1980
- Nippon Gakki Seizo Kabushiki Kaisha
- Syunji Aono
- B22 - CASTING POWDER METALLURGY