Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32938 | Dual fuel system for internal combustion engine | Dale Needham | 1989-06-06 |
| 4831979 | Wrist pin lubrication system for two-cycle engines | Chester G. DuBois | 1989-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32938 | Dual fuel system for internal combustion engine | Dale Needham | 1989-06-06 |
| 4831979 | Wrist pin lubrication system for two-cycle engines | Chester G. DuBois | 1989-05-23 |