Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D476943 | Inflatable aircraft | — | 2003-07-08 |
| 6536708 | Take-off device for airplanes | Sepp Steffen, Hans Ulrich Ammann | 2003-03-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D476943 | Inflatable aircraft | — | 2003-07-08 |
| 6536708 | Take-off device for airplanes | Sepp Steffen, Hans Ulrich Ammann | 2003-03-25 |