Ryouichi Okuda

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Metal working oil composition
- Patent number 6,562,766
- Issue date May 13, 2003
- Idemitsu Kosan Co., Ltd.
- Saburo Koyama
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...