Yilei Li

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for automatically adjusting the tension of a f...
- Patent number 9,242,836
- Issue date Jan 26, 2016
- China University of Mining and Technology
- Guohua Cao
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Mining elevator traction cable connecting apparatus and measuring m...
- Patent number 9,156,655
- Issue date Oct 13, 2015
- China University of Mining and Technology
- Guohua Cao
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR AUTOMATICALLY ADJUSTING TENSION ON MINING...
- Publication number 20130233654
- Publication date Sep 12, 2013
- DONGNAN ELEVATOR CO., LTD.
- Guohua Cao
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MINING ELEVATOR TRACTION CABLE CONNECTING APPARATUS AND MEASURING M...
- Publication number 20130056313
- Publication date Mar 7, 2013
- DONGNAN ELEVATOR CO., LTD.
- Guohua Cao
- B66 - HOISTING LIFTING HAULING