Yunjie FAN

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Bogie of a rail vehicle with at least two wheelsets mounted in axle...
- Patent number 11,254,335
- Issue date Feb 22, 2022
- CRRC Qingdao Sifang Co., Ltd.
- Lijun Ma
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
BOGIE OF A RAIL VEHICLE WITH AT LEAST TWO WHEELSETS MOUNTED IN AXLE...
- Publication number 20190322296
- Publication date Oct 24, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Lijun MA
- B61 - RAILWAYS