Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321581 | Powerline carrier control system | Hermann Tappeiner, Ernst-Robert Paessler, Karl-Heinz Krugel | 1982-03-23 |
| 4319224 | Powerline carrier control system with powerline current compensation | Hermann Tappeiner, Ernst-Robert Paessler, Karl-Heinz Krugel | 1982-03-09 |