Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848267 | Apparatus for removal and addition of developer to a toner module | Danny L. Slayton, Khosrow Lak, Charles S. Palm | 1989-07-18 |
| 4839722 | Method and apparatus for providing improved color correction in a subtrative color printing system | Michael W. Barry, Peter A. Zuber | 1989-06-13 |