Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644598 | Switching arrangement for coupling a transmitting unit to a transmission line | — | 1997-07-01 |
| 5463680 | Switching arrangement for activating electrical devices | Hans Fritschi, Alfred Grau | 1995-10-31 |