Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6070858 | Single loop tractioned winch-like device | Ewald Ettrich | 2000-06-06 |
| 4191310 | Device for inflating lifesaving equipment | Jost Bernhardt, Georg Hase, Klaus Hagen | 1980-03-04 |