Yugen-Kaisha Idea Research

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing plastic compound and an apparatus therefor
- Patent number 4,022,440
- Issue date May 10, 1977
- Ikegai Iron Works, Ltd.
- Yuzo Kawamura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL