Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889241 | Discharge chute with variable slope bottom for fragile article sorting system | Robert Michael Echols | 1989-12-26 |
| 4831922 | Automated system for processing whole potatoes | Robert Michael Echols, Tina T. Dierl | 1989-05-23 |