Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886021 | Multi-cylindered two stroke cycle engines | Kenneth P. Seeber | 1989-12-12 |
| 4825828 | Direct fuel injection | Peter Ragg | 1989-05-02 |
| 4807572 | Timing of fuel injected engines | — | 1989-02-28 |