Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5473923 | Method of intermittent straightening of wire | Robert Widmer | 1995-12-12 |
| 4670632 | High-voltage switch with a closing resistor | Walter Bischofberger, Heinz Eichholzer, Werner Graber, Jiri Talir, Werner Luthi | 1987-06-02 |