Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989295 | Telescopic guide wand for floor-cleaning appliances | Wieland Guhne, Hans J. Birr, Jurgen Jager | 1991-02-05 |
| 4846426 | Hang-up and protective arrangement for an electrical appliance | Uwe Kemker, Hans J. Birr, Wieland Guhne | 1989-07-11 |
| 4733433 | Grip unit for a suction hose of a vacuum cleaner system | Hans-Peter Simm | 1988-03-29 |