Gaojun QI

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Jinan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Soil layer detection drilling device
- Patent number 12,247,901
- Issue date Mar 11, 2025
- POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCION CO., LTD.
- Chuanguo Du
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SOIL LAYER DETECTION DRILLING DEVICE
- Publication number 20250067632
- Publication date Feb 27, 2025
- POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCTION CO., LTD.
- Chuanguo DU
- E21 - EARTH DRILLING MINING