Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142085 | Hydraulic compression system for seeder | Kenneth Wayne Drever, James W. Halford, Derek Christopher Opseth | 2000-11-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142085 | Hydraulic compression system for seeder | Kenneth Wayne Drever, James W. Halford, Derek Christopher Opseth | 2000-11-07 |