Toshio Onishi

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Koshigaya, JA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for treating by-product gypsum to be used as an inhibitor...
- Patent number 3,998,596
- Issue date Dec 21, 1976
- Onoda Cement Company, Ltd.
- Yoshiharu Fukuda
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES