Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4417637 | Air cushion vehicle | Derek Hardy | 1983-11-29 |
| 4397366 | Air cushion vehicles | John E. Dadswell | 1983-08-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4417637 | Air cushion vehicle | Derek Hardy | 1983-11-29 |
| 4397366 | Air cushion vehicles | John E. Dadswell | 1983-08-09 |