Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644223 | Disc opener assembly for a seed planter | Douglas Samuel Prairie | 2003-11-11 |
| 6640732 | Disc opener assembly for a seed planter | Douglas Samuel Prairie | 2003-11-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644223 | Disc opener assembly for a seed planter | Douglas Samuel Prairie | 2003-11-11 |
| 6640732 | Disc opener assembly for a seed planter | Douglas Samuel Prairie | 2003-11-04 |