Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831220 | High-voltage compressed-gas circuit breaker | Dieter Noack, Bernd Bruchmann | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831220 | High-voltage compressed-gas circuit breaker | Dieter Noack, Bernd Bruchmann | 1989-05-16 |