Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880099 | Tilting reversible belt transfer mechanism | Hendrik Leemkuil | 1989-11-14 |
| 4850555 | Stake and coupler for irrigation device | Jack L. Lemkin, Carl A. Peterson | 1989-07-25 |
| 4809836 | Conveyor retarder | — | 1989-03-07 |