Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620674 | Pneumatic actuated roller assembly for a roller mill | Stephen A. Lukacz, Jeffrey N. Nelson | 1986-11-04 |
| 4498634 | Division head for grinding mill | Jeffrey A. Nelson | 1985-02-12 |