Shuangqi TIAN

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Xi'an City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Multi-section non-pillar staggered protected roadway for deep incli...
- Patent number 10,989,051
- Issue date Apr 27, 2021
- Panshi Xie
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
MULTI-SECTION NON-PILLAR STAGGERED PROTECTED ROADWAY FOR DEEP INCLI...
- Publication number 20200232323
- Publication date Jul 23, 2020
- XI'AN UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Panshi XIE
- E21 - EARTH DRILLING MINING