Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873168 | Imaging system utilizing heat treatment | Donna L. Ruder, James A. Dowler | 1989-10-10 |
| 4824755 | Pressure roller developed images via pre-abrasion | Edward J. Saccocio | 1989-04-25 |