Hiroshi Tamemasa

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Reduction process for preparing copper, silver, and admixed silver-...
- Patent number 4,863,510
- Issue date Sep 5, 1989
- Tanaka Kikinzoku Kogyo K.K.
- Hiroshi Tamemasa
- B22 - CASTING POWDER METALLURGY