Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870929 | Multi-cylinder engine with uniform cylinder sensitivity to knocking | James E. Macier, David C. Calamia, John M. Daniels | 1989-10-03 |
| 4795383 | Marine propulsion device low-speed exhaust system | Robert W. Gerdes, James E. Macier | 1989-01-03 |