Jingbo CUI

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Langfang, Hebei, CN

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Patents Grantslast 30 patents

Information Patent Grant
Six-arm tunneling and anchoring machine for integrating tunneling a...
- Patent number 11,619,131
- Issue date Apr 4, 2023
- LANG FANG JING LONG GRAND INDUSTRIAL MACHINERY CO., LTD.
- Changyan Pu
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Six-Arm Tunneling and Anchoring Machine
- Publication number 20230383651
- Publication date Nov 30, 2023
- LANG FANG JING LONG GRAND INDUSTRIAL MACHINERY CO.,LTD.
- Yaohui FAN
- E21 - EARTH DRILLING MINING
Information Patent Application
Six-Arm Tunneling and Anchoring Machine for Integrating Tunneling a...
- Publication number 20220090498
- Publication date Mar 24, 2022
- LANG FANG JING LONG GRAND INDUSTRIAL MACHINERY CO., LTD.
- Changyan PU
- E21 - EARTH DRILLING MINING