Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214994 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, Hongliang Wu | 2025-02-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214994 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, Hongliang Wu | 2025-02-04 |