Takayuki Shirai

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Tokoname, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing cement products having superior mechanical...
- Patent number 4,407,769
- Issue date Oct 4, 1983
- Ina Seito Co., Ltd.
- Shozo Harada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES