Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4467272 | Circuit for measuring inductance changes | Eckehart Friz | 1984-08-21 |
| 4428341 | Electronic regulating device for rpm regulation in an internal combustion engine having self-ignition | Fridolin Piwonka | 1984-01-31 |