Qingping LEI

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Wuhan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Engineering vehicle having ballast unloading device and ballast lev...
- Patent number 10,501,096
- Issue date Dec 10, 2019
- CRRC YANGTZE CO., LTD.
- Wei Chen
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
ENGINEERING VEHICLE HAVING BALLAST UNLOADING DEVICE AND BALLAST LEV...
- Publication number 20170327130
- Publication date Nov 16, 2017
- CSR YANGZE CO., LTD.
- Wei CHEN
- B61 - RAILWAYS