Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667495 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, James L. Hubbard | 2023-06-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667495 | Brake disc releasing device, turning device, elevator rescue kit and method | Fengkun Zhu, James L. Hubbard | 2023-06-06 |