Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D277792 | Floor cleaner head | — | 1985-02-26 |
| 4454627 | Device for cleaning textile surfaces | Hans-Peter Simm, Wieland Guhne, Renate Friedrichs | 1984-06-19 |
| D274150 | Upholstery cleaner | — | 1984-06-05 |