Hiroshi Kiriyama

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Bizen, JP

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Patents Grantslast 30 patents

Information Patent Grant
Monolithic refractories
- Patent number 5,346,942
- Issue date Sep 13, 1994
- Shinagawa Refractories Co., Ltd.
- Takashi Yamamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES