Kazunao Yokota

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic composition, formed products therefrom and segregation re...
- Patent number 5,174,821
- Issue date Dec 29, 1992
- Taisei Corporation
- Yasunori Matsuoka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES