Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884083 | Printer compensated for vibration-generated scan line errors | William L. Lama | 1989-11-28 |
| 4868587 | Image halftoning system for printers | Susan E. Feth, William L. Lama, Richard F. Lehman | 1989-09-19 |
| 4801978 | Image bar printer compensated for vibration-generated scan line errors | William L. Lama, John A. Durbin | 1989-01-31 |