Akio Furihata

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Sakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Impregnating waterproof composition
- Patent number 5,332,428
- Issue date Jul 26, 1994
- Shin-Etsu Chemical Co., Ltd.
- Hiroshi Yoshioka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES