Wei CHENG

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Heilongjiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Full side openable boxcar
- Patent number 10,696,311
- Issue date Jun 30, 2020
- CRRC Qiqihar Railing Stock Co., Ltd.
- Lianhua Lou
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
FULL SIDE OPENABLE BOXCAR
- Publication number 20180001909
- Publication date Jan 4, 2018
- CRRC QIQIHAR ROLLING STOCK CO., LTD.
- Lianhua LOU
- B61 - RAILWAYS