Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401342 | Cutting knife for cutting cement beads of window panes | Walter Thomaschewski, Georg Harsch | 2002-06-11 |
| 5123216 | Portable grinder | Gustav Schuhmacher, Fritz Gramm | 1992-06-23 |
| 4920702 | Portable grinder | Gustav Schuhmacher, Fritz Gramm | 1990-05-01 |