Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824613 | Vapor return primer for carburetors of internal combustion engines | Mark A. Hutchinson | 1989-04-25 |
| 4820454 | Starting aid for small internal combustion engines | Carl Dull | 1989-04-11 |