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Patents Grantslast 30 patents

Information Patent Grant
Train smoke and fire alarm communication method based on independen...
- Patent number 10,147,292
- Issue date Dec 4, 2018
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- Guorui Yin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRAIN SMOKE AND FIRE ALARM COMMUNICATION METHOD BASED ON INDEPENDEN...
- Publication number 20180174417
- Publication date Jun 21, 2018
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- GUORUI YIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE