Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4582023 | Livestock self-feeder | Dennis J. Zumbahlen, Cary L. Sizelove, William J. Dietrich, Sr. | 1986-04-15 |
| 4212254 | Tiller planter with modified seed bed finishing implement | — | 1980-07-15 |