Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875439 | Marine propulsion system with fuel line cooler | Gerald F. Neisen, Jeffrey P. Ruhnke, Thomas J. Steffes, Brian S. Buchholz | 1989-10-24 |
| 4865004 | Marine propulsion system with fuel line cooler | Gerald F. Neisen, Jeffrey P. Ruhnke, Thomas J. Steffes, Brian S. Buchholz | 1989-09-12 |
| 4845945 | Exhaust elbow trough | Robin J. Schrage, Jeffery White, John H. Gundert | 1989-07-11 |