Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812736 | Circuit arrangement for operating high-pressure gas discharge lamps | Manfred Albach, Ralf Schafer, Hans Peter Stormberg | 1989-03-14 |
| 4801887 | Circuit arrangement for generating a direct voltage from a sinusoidal input voltage | — | 1989-01-31 |