Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848283 | Marine engine with combination vapor return, crankcase pressure, and cooled fuel line conduit | Norman H. Radtke | 1989-07-18 |
| 4846118 | Duel fuel pump and oil-fuel mixing valve system | Gordon C. Slattery, Ronald D. Stageman | 1989-07-11 |