Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247882 | Quick change rotary screen printing apparatus | Jon C. Zook, Robert A. Bourgeois, Randy C. Lange | 1993-09-28 |
| 4679989 | Pump shovel bulk unloader | Donald S. Nii | 1987-07-14 |