Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834004 | Air seeder sample collector | Fred N. Butuk | 1989-05-30 |
| 4813489 | Foldable packer harrow implement | Murray K. Just, Lawrence S. Grodecki, James W. Henry | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834004 | Air seeder sample collector | Fred N. Butuk | 1989-05-30 |
| 4813489 | Foldable packer harrow implement | Murray K. Just, Lawrence S. Grodecki, James W. Henry | 1989-03-21 |