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Dalian City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Construction method for recyclable anchor rod
- Patent number 11,555,285
- Issue date Jan 17, 2023
- Dalian University of Technology
- Jinqing Jia
- E04 - BUILDING
Information Patent Grant
Spiral impact drilling machine applicable to rock and soil and cons...
- Patent number 11,555,351
- Issue date Jan 17, 2023
- Dalian University of Technology
- Jinqing Jia
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CONSTRUCTION METHOD FOR RECYCLABLE ANCHOR ROD
- Publication number 20220267979
- Publication date Aug 25, 2022
- Dalian University of Technology
- Jinqing JIA
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
SPIRAL IMPACT DRILLING MACHINE APPLICABLE TO ROCK AND SOIL AND CONS...
- Publication number 20220154532
- Publication date May 19, 2022
- Dalian University of Technology
- Jinqing JIA
- E21 - EARTH DRILLING MINING