Hui-Li Weng

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Nantou County, TW

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Patents Grantslast 30 patents

Information Patent Grant
Stair climbing aid
- Patent number 7,950,498
- Issue date May 31, 2011
- Nan Kai Institute of Technology
- Jiin-Hwa Yang
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Stair Climbing Aid
- Publication number 20080264722
- Publication date Oct 30, 2008
- Jiin-Hwa YANG
- E04 - BUILDING