Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4318659 | Manure spreader box | David A. Willer, Rory Rae | 1982-03-09 |
| 4220280 | Manure spreader | Clarence R. Trott, Dennis P. Chadwick | 1980-09-02 |
| 4196859 | Spreader control | Clarence R. Trott, Rory Rae | 1980-04-08 |