Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879477 | Procedure and circuit arrangement for switching on an inductance subject to remanence | — | 1989-11-07 |
| 4849677 | Temperature monitoring for a DC shunt-wound motor | — | 1989-07-18 |
| 4832329 | Device for controlling a pile lifting device and method of operation | Anton Rodi | 1989-05-23 |