Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5123216 | Portable grinder | Gunter Kloss, Fritz Gramm | 1992-06-23 |
| 4989320 | Knife | Rudolf Borkott, Gert Flachenecker, Fritz Gramm, Heinz Schueler | 1991-02-05 |
| 4920702 | Portable grinder | Gunter Kloss, Fritz Gramm | 1990-05-01 |
| 4905420 | Grinder with dust exhaust means | Gert Flachenecker, Fritz Gramm, Guenther Kloss | 1990-03-06 |