Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334828 | Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency | — | 1982-06-15 |
| 4324530 | Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency | Evan A. Fradenburgh, William D. Jepson | 1982-04-13 |