Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815759 | Vehicle with steering-controlled torsion bar stabilizer | Gregory J. Marien, Wayne L. Warnke | 1989-03-28 |
| 4804198 | Vehicle with steering-controlled torsion bar stabilizer | Gregory J. Marier, Wayne L. Warnke | 1989-02-14 |