Junichiro Migita

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Expansive demolition agent
- Patent number 4,807,530
- Issue date Feb 28, 1989
- Onoda Cement Co., Ltd.
- Shiro Ishii
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES