Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663500 | Silver-based contact material for switchgear used in power engineering | Franz Hauner, Gunter Tiefel | 1997-09-02 |
| 5620332 | Terminal element | Dieter Gerke, Harald Bulow | 1997-04-15 |