Seiichi Nakamura

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Yamanashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing precision metal part by powder molding wherei...
- Patent number 5,283,031
- Issue date Feb 1, 1994
- Citizen Watch Co., Ltd.
- Naoto Ogasawara
- B22 - CASTING POWDER METALLURGY