Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809911 | Safety switching device for safely switching off an electrical load | Rolf Dickhoff | 2004-10-26 |
| 6777830 | System for reliable prevention of the restarting of a machine | William Anderson, Donald L. Wires, Jürgen Behrens, Claude Hovine, Gernot Müsseler +2 more | 2004-08-17 |