Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678279 | Floor care appliance, in particular vacuum cleaning appliance, having downwardly directed bristles preferably disposed about the outer peripheral edge | Wieland Guhne, Mario Tecchiati, Thomas Braun | 1997-10-21 |
| 5353471 | Apparatus for performing work on a floor surface | Wieland Guhne, Heinz-Jurgen Ahlf, Mario Tecchiati | 1994-10-11 |
| 5259085 | Floor-care work disks which can be attached by clip mounting to the drive plate of a floor-care instrument | Mario Tecchiati, Wieland Guhne, Hans J. Birr | 1993-11-09 |
| 5230724 | Dust filter bag | Mario Tecchiati | 1993-07-27 |