Cheng-Yang Hsu

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Trench shield directly ridable and movable on a constructing pipe
- Patent number 6,164,875
- Issue date Dec 26, 2000
- Institute of Occupational Safety and Health, Council of Labor Affairs
- Shih-Hsiung Wu
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Trench shield having wheels simultaneously provided for protection...
- Patent number 6,155,750
- Issue date Dec 5, 2000
- Institute of Occupational Safety and Health, Council of Labor Affairs
- Shih-Hsiung Wu
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING