Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265477 | Folding sideboard gooseneck trailer | — | 1981-05-05 |
| 4238890 | Method and apparatus for field-drying harvested crops | Joel E. Curtis | 1980-12-16 |
| 4222317 | Method and apparatus for field-drying harvested crops | Joel E. Curtis | 1980-09-16 |