Yoshiyuki Nobuoka

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Taphole mix for molten metal taphole
- Patent number 5,962,357
- Issue date Oct 5, 1999
- Shinagawa Refractories Co., Ltd.
- Yukitoshi Kubota
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES