Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593347 | Emergency ventilation system for elevator cab | Terry Roy Mandy, Nazar F. Bally | 1997-01-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593347 | Emergency ventilation system for elevator cab | Terry Roy Mandy, Nazar F. Bally | 1997-01-14 |