Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046610 | Electronic component carrier | John F. Runyon | 1991-09-10 |
| 4433946 | Discharge system for grain handling apparatus | Roy O. Christianson | 1984-02-28 |
| D271105 | Bulk material handling apparatus | Roy O. Christianson | 1983-10-25 |