Shi-Chang Tseng

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Yunlin, TW

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Patents Grantslast 30 patents

Information Patent Grant
Transmission apparatus for a leveraged wheelchair
- Patent number 11,202,728
- Issue date Dec 21, 2021
- Junghsen Lieh
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
TRANSMISSION APPARATUS FOR A LEVERAGED WHEELCHAIR
- Publication number 20210059877
- Publication date Mar 4, 2021
- Junghsen Lieh
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE