Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865155 | High-rise fire fighting and rescue system | Bernard Lietaer | 1989-09-12 |
| 4830141 | Deployable rail structure for high-rise building evacuation system | — | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865155 | High-rise fire fighting and rescue system | Bernard Lietaer | 1989-09-12 |
| 4830141 | Deployable rail structure for high-rise building evacuation system | — | 1989-05-16 |