Shoichi Hamada

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Expansion injection molding die
- Patent number 4,963,087
- Issue date Oct 16, 1990
- Nippon Steel Chemical Co., Ltd.
- Hiroshi Aida
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL