Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571499 | Circuit arrangement for switchover of load between different sources of alternating voltage | — | 1986-02-18 |
| 4550285 | Load-switching circuit for antiparallel thyristor networks and a tapped transformer | Kurt Kugler, Hans-Henning Lessmann-Mieske | 1985-10-29 |
| 4325020 | Regulating transformer | — | 1982-04-13 |