Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814071 | Flexible connector for screening machine | — | 1989-03-21 |
| 4802591 | Louvered chip screener | W. Nash McCauley, Stephen C. Mitchell, Roger C. Robins, Steven Schmidt | 1989-02-07 |
| 4797204 | Automatic particle-size analyzer with divided drum | Glenn J. Pogue | 1989-01-10 |