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Patents Grantslast 30 patents

Information Patent Grant
Coupler telescopic apparatus and coupler
- Patent number 11,014,584
- Issue date May 25, 2021
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. (CN)
- Guangchao Wang
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
COUPLER TELESCOPIC APPARATUS AND COUPLER
- Publication number 20210078616
- Publication date Mar 18, 2021
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- Guangchao WANG
- B61 - RAILWAYS