Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542793 | Rotary cutting tool with axially precision positioned end cutting inserts | Siegfried Deiss | 1996-08-06 |
| 4283163 | Cutting tool with replaceable edge cutting bit | Werner Grafe | 1981-08-11 |
| 4219292 | Rotary helical milling cutter with replaceable cutter bit elements | Friedrich Hoffmann, Werner Grafe, Siegfried Deiss | 1980-08-26 |