Tadaoki Arakawa

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Seto, JA

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Patents Grantslast 30 patents

Information Patent Grant
Poppet valve
- Patent number 4,073,474
- Issue date Feb 14, 1978
- Toyota Jidosha Kogyo Kabushiki Kaisha
- Kametaro Hashimoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR