Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11780710 | Elevator door interlock assembly | Andrew Darnley, III, Susan M. Siegmann, Joseph Harlan Marshall | 2023-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11780710 | Elevator door interlock assembly | Andrew Darnley, III, Susan M. Siegmann, Joseph Harlan Marshall | 2023-10-10 |