Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873107 | Air impingement tunnel oven apparatus | — | 1989-10-10 |
| 4824644 | Recirculating high velocity hot air sterilizing device having improved internal insulation structure | M. Keith Cox | 1989-04-25 |