Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298865 | Connecting circuit for connecting a lambda probe to a control apparatus of an internal combustion engine and test method for said circuit | Helmut Denz, Johannes-Dieter Wichterich, Ernst Wild, Joachim Heimes, Eugen Joos +2 more | 1994-03-29 |