Norio Nakayama

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Takamatsu-shi, Kagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Retaining wall structure and method of constructing same
- Patent number 5,549,420
- Issue date Aug 27, 1996
- Norio Nakayama
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING