Yi Xu

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Qiqihar, CN

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Patents Applicationslast 30 patents

Information Patent Application
EMERGENCY VALVE HAVING EMERGENCY ACCELERATED RELEASE FUNCTION
- Publication number 20250196834
- Publication date Jun 19, 2025
- CRRC QIQIHAR ROLLING STOCK CO., LTD.
- Yi Xu
- B60 - VEHICLES IN GENERAL
Information Patent Application
AIR CONTROL VALVE
- Publication number 20250178580
- Publication date Jun 5, 2025
- CRRC QIQIHAR ROLLING STOCK CO., LTD.
- Hua Li
- B60 - VEHICLES IN GENERAL