Shigeru Waku

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ceramic material of low thermal expansion coefficient and method of...
- Patent number 4,105,456
- Issue date Aug 8, 1978
- Nippon Telegraph & Telephone Public Corporation
- Toshiaki Murakami
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES