Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10288135 | Brake for elevator and a replacement method of damper of the brake for elevator | YaFei Ren, Guochen Gao | 2019-05-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10288135 | Brake for elevator and a replacement method of damper of the brake for elevator | YaFei Ren, Guochen Gao | 2019-05-14 |