Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5820643 | Dust filter bag for a vacuum cleaner | Stefan Kraut-Reinkober | 1998-10-13 |
| 4888850 | Vacuum cleaner nozzle arrangement | Ludger Helmes | 1989-12-26 |
| 4358165 | Holding device for supporting a turnable shaft | Volker Julius | 1982-11-09 |