Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33085 | Precleaner | Raymond E. Franzen | 1989-10-10 |
| D273956 | Air precleaner for an internal combustion engine | — | 1984-05-22 |
| 4373940 | Air precleaner for internal combustion engine | — | 1983-02-15 |
| 4201557 | Precleaner | — | 1980-05-06 |