Shigeru Akutagawa

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Hiroshima, JA

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Patents Grantslast 30 patents

Information Patent Grant
Sintering method for making a high carbon ferrous sliding element
- Patent number 4,042,385
- Issue date Aug 16, 1977
- Toyo Kogyo Co., Ltd.
- Kenji Miyake
- B22 - CASTING POWDER METALLURGY