Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835351 | Oven humidity reservoir | Donald P. Smith, William W. Plumb | 1989-05-30 |
| 4831238 | High volume forced convection tunnel oven | Donald P. Smith, William W. Plumb | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835351 | Oven humidity reservoir | Donald P. Smith, William W. Plumb | 1989-05-30 |
| 4831238 | High volume forced convection tunnel oven | Donald P. Smith, William W. Plumb | 1989-05-16 |