Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684664 | Method for the production of an insulator | Elias Julke | 1997-11-04 |
| 5650772 | Device for indicating a faulty condition of an electrical apparatus, in particular of a surge arrester | — | 1997-07-22 |
| 5602710 | Surge arrester | Christoph Schupbach | 1997-02-11 |