CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH
Patent Applications and Registrations
Patent applications and USPTO patent grants for CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH.The latest application filed is for "hand brake".
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH - Qingdao N/A CN
| Patent | Date |
|---|---|
| Hand brake Grant 9,828,009 - Bi , et al. November 28, 2 | 2017-11-28 |
| Hand Brake App 20160257317 - BI; JINGQUAN ; et al. | 2016-09-08 |
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