Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323970 | Method and circuit arrangement for generating setting signals for signal generators of a traffic signal system, particularly a street traffic signal system | Heinrich Brunner | 1982-04-06 |
| 4215405 | Method and apparatus for securing the intermediate time durations in street traffic signal systems | Heinrich Brunner | 1980-07-29 |