Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812979 | Method and apparatus for analyzing the performance of the electronic ignition of an internal combustion engine | Horst Hermann, Armin Rech, Gerd Rech, Gunter Reinhardt | 1989-03-14 |