Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877376 | Attachment of a rotor blade of fiber reinforced plastic to a metal rotor hub | Siegfried Sikorski | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877376 | Attachment of a rotor blade of fiber reinforced plastic to a metal rotor hub | Siegfried Sikorski | 1989-10-31 |