Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809931 | "Directional and stabilizing device having a faired and slanted antitorque rotor and a disymmetric ""V"" empennage, and a helicopter equipped with such a device" | Rene L. Mouille | 1989-03-07 |