Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349316 | Twist control for helicopter tail rotor pitch change | Keith W. Harvey, Walter Gerd Oskar Sonneborn | 1982-09-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349316 | Twist control for helicopter tail rotor pitch change | Keith W. Harvey, Walter Gerd Oskar Sonneborn | 1982-09-14 |