Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486931 | Scarifying machine | Perry M. Domaas | 1984-12-11 |
| RE31745 | Composite brush | — | 1984-11-27 |
| D275617 | Scarifier housing | Perry M. Domaas | 1984-09-18 |
| 4336624 | Squeegee assembly | Donald N. Mehl | 1982-06-29 |
| 4305234 | Composite brush | — | 1981-12-15 |
| D257322 | Bracket plate | Donald N. Mehl | 1980-10-14 |