Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819026 | Cleaning apparatus for a charge retentive surface | Clark V. Lange, John M. Wysocky | 1989-04-04 |
| 4819031 | Rotating vane toner transport for blade cleaning on horizontal surfaces | David Wyble | 1989-04-04 |