QINGWEI DUAN

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BEIJING, CN

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Patents Grantslast 30 patents

Information Patent Grant
Advanced monitoring device for whole-process deformation curve of s...
- Patent number 11,236,612
- Issue date Feb 1, 2022
- Xiaogang Wang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Advanced monitoring device for whole-process deformation curve of s...
- Publication number 20200018164
- Publication date Jan 16, 2020
- CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
- XIAOGANG WANG
- G01 - MEASURING TESTING