Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9283688 | Method for cutting block materials and cutting machine for cutting block materials | Helmut Toennes, Ludger Weingaertner | 2016-03-15 |
| 9193090 | Cutting machine | Helmut Tönnes | 2015-11-24 |