Susumu Ohhazama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil composition for electrical discharge machining
- Patent number 5,136,116
- Issue date Aug 4, 1992
- Nippon Oil Co., Ltd.
- Susumu Ohhazama
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...