Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409228 | Spring system for connecting two flanges | Helmut Hutt, August Kästner | 2002-06-25 |
| 5873609 | Device for connecting two tubular conducting parts | Jorg Abthoff, Gunther Ebinger, Gunter Konig, Karl-Heinz Gersmann, August Kästner | 1999-02-23 |