Yutaka Keida

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Material automatic feeding system for injection molding machines
- Patent number 4,880,372
- Issue date Nov 14, 1989
- Sumitomo Heavy Industries, Ltd.
- Yutaka Keida
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL