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 | Manfred Muller, Gunter Tiefel | 1997-09-02 |
| 5628448 | Process for bonding a contact layer of silver-metal oxide material and metal contact base, and suitable contact layer | — | 1997-05-13 |