Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523513 | Pneumatic door-operating arrangement | Wolfgang Gudat, Alfred Klatt | 1985-06-18 |
| 4494571 | Electropneumatic door control valve | Gunter Seegers, Alfred Klatt | 1985-01-22 |
| 4493244 | Pneumatic door operator | Rudiger F. V. Stillfried, Gunter Seegers | 1985-01-15 |