Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32522 | Hay rake | — | 1987-10-20 |
| 4481758 | Hay rake | — | 1984-11-13 |
| 4452591 | Resilient rotary coupling | Harold E. Keller, John P. Van Der Aue | 1984-06-05 |
| 4391436 | Resilient mounting | — | 1983-07-05 |