Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6108865 | Portable handheld blower/vacuum apparatus | Norbert Veser, Thomas Schweigert, Helmut Hiltwein, Peter Bauer | 2000-08-29 |
| 5351403 | Protective shield for a free-cutting tool | Georg Becker, Joachim Hoffmann, Thilo Hummel, Helmut Schlessman | 1994-10-04 |
| 4866846 | Cutterhead for a vegetation cutter | Joachim Hoffmann, Dieter Angstenberger, Gerhard Zerrer | 1989-09-19 |