Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162227 | Boltless fastener assembly for heavy haul railway with axle load of 35-40 tons | Hangwei Fang, Zirui Li, Yanshan Li, Chengliang Li, Haoyong YU +2 more | 2021-11-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162227 | Boltless fastener assembly for heavy haul railway with axle load of 35-40 tons | Hangwei Fang, Zirui Li, Yanshan Li, Chengliang Li, Haoyong YU +2 more | 2021-11-02 |