Akihiko Asayama

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming a decorative layer on a precast concrete board
- Patent number 4,134,956
- Issue date Jan 16, 1979
- Kowa Chemical Industry Ltd.
- Yoshinori Suzuki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES