Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222479 | Oxygen self-rescuer apparatus | Lothar Brauer, Klaus-Dieter Dahrendorf, Volker Hunnebeck, Klaus Haertle, Werner Mascher +4 more | 1993-06-29 |
| 4459981 | Breathing bag for closed cycle respirator | Werner Mascher, Stefan Zloczysti, Klaus Haertle | 1984-07-17 |
| 4361146 | Filtering respirator | — | 1982-11-30 |