Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5290990 | Seam welding machine for joining sheet blanks together | Karl W. Wueger | 1994-03-01 |
| 4670632 | High-voltage switch with a closing resistor | Heinz Eichholzer, Werner Graber, Jiri Talir, Edgar Hochspach, Werner Luthi | 1987-06-02 |
| 4636599 | High-voltage switch | Heinz Eicholzer, Jiri Talir | 1987-01-13 |
| 4608470 | High-voltage switch | Heinz Eichholzer, Werner Graber, Jiri Talir | 1986-08-26 |
| 4581510 | Drive for a high-tension circuit breaker | Horst Plettner, Kristof Zakowski, Norbert Zeller | 1986-04-08 |
| 4343972 | Hydraulic drive for electrical switches | Norbert Zeller | 1982-08-10 |
| 4275392 | Method and apparatus for monitoring the gas volume of a hydropneumatic storage unit | Norbert Zeller | 1981-06-23 |