Chengyun Zhu

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Tower lifting device for rotary blasthole drill
- Patent number 10,316,540
- Issue date Jun 11, 2019
- EPIROC (NANJING) CONSTRUCTION AND MINING EQUIPMENT CO., LTD.
- Jie Zhao
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TOWER LIFTING DEVICE FOR ROTARY BLASTHOLE DRILL
- Publication number 20170260769
- Publication date Sep 14, 2017
- ATLAS COPCO (NANJING) CONSTRUCTION AND MINING EQUI PMENT LTD.
- Jie Zhao
- E04 - BUILDING