Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676429 | Seed firming wheel for grain drills and the like | Eric Johnson | 1997-10-14 |
| 5494339 | Seed firming wheel for grain drills and the like | Eric Johnson | 1996-02-27 |
| 4664202 | Folding implement frame for grain drills and the like | Eric Johnson, Ray A. Adee | 1987-05-12 |
| 4214637 | Elevation altering structure for agricultural implements | — | 1980-07-29 |
| 4211288 | Raisable implement frame with operably connected wheel and draft frames | — | 1980-07-08 |