Koichi Maekawa

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Hino, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing concrete for placement in air not requiring...
- Patent number 5,316,572
- Issue date May 31, 1994
- NMB Ltd.
- Hajime Okamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES