Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924849 | Holding device for electric fans in particular minifans | Arno Wolfgang Winkler | 1999-07-20 |
| 4886415 | Fan with an essentially square housing | Raimund Engelberger, Siegfried Harmsen, Josef Schneider | 1989-12-12 |