Akemi Shiraishi

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Gumma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Leakage water cut-off agent and method of preventing water leakage
- Patent number 6,679,944
- Issue date Jan 20, 2004
- Nippon Kayaku Kabushiki Kaisha
- Yuji Ito
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING