Joroku Sasahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing vegetation bedrock and muddy borrow soil base...
- Patent number 4,936,711
- Issue date Jun 26, 1990
- Kabushiki Kaisha Kumagaigumi
- Joroku Sasahara
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING