GUOHUA ZHANG

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Patents Grantslast 30 patents

Information Patent Grant
High-efficiency pre-drilling pressure meter test apparatus and meth...
- Patent number 10,914,164
- Issue date Feb 9, 2021
- China University of Geosciences (Wuhan)
- Junpeng Zou
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR EVALUATING STABILITY OF TUNNEL SURROUNDING ROCK CONSIDER...
- Publication number 20240411047
- Publication date Dec 12, 2024
- CHINA UNIVERSITY OF GEOSCIENCES (WUHAN)
- Guohua ZHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HIGH-EFFICIENCY PRE-DRILLING PRESSURE METER TEST APPARATUS AND METH...
- Publication number 20190316462
- Publication date Oct 17, 2019
- CHINA UNIVERSITY OF GEOSCIENCES (WUHAN)
- JUNPENG ZOU
- E21 - EARTH DRILLING MINING