Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7121589 | Tank fitting and method of use | James R. Hawkinson | 2006-10-17 |
| 4329105 | Silo unloader leveling apparatus | Floyd E. Buschbom, Glen D. Hansen, Clifton W. Anderson | 1982-05-11 |
| 4284371 | Material handling system | Lawrence C. Zylka | 1981-08-18 |