Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700785 | Furrow opener assembly with integral down-pressure adjustment | Ronald M. Steilen, Vernon E. Rettig | 1987-10-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700785 | Furrow opener assembly with integral down-pressure adjustment | Ronald M. Steilen, Vernon E. Rettig | 1987-10-20 |