Touichi Takagi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lead-containing oxide powder
- Patent number 4,812,426
- Issue date Mar 14, 1989
- Denki Kagaku Kogyo Kabushiki Kaisha
- Touichi Takagi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES