Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4290136 | Circuit arrangement for monitoring the state of signal systems, particularly traffic light signal systems | Heinrich Brunner, Peter Drebinger, Peter Hoehne, Johann Hoisl, Walter Wimmer | 1981-09-15 |