Masao Katsuragi

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Hamura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Porous inorganic product
- Patent number 4,104,077
- Issue date Aug 1, 1978
- The Yokohama Rubber Co., Ltd.
- Kazuaki Kobayashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES