Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6163001 | Puffer type circuit breaker with arcing chamber, auxiliary shunting contacts and exhaust structure with pressure relief valves | Lukas Zehnder, Kurt Kaltenegger, Lutz Niemeyer, Thomas Schoenemann | 2000-12-19 |