Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831407 | Process unit for an imaging apparatus | Alan C. R. Howard, David M. Newbury | 1989-05-16 |
| 4796057 | Toner cleaning apparatus | Alan C. R. Howard, Philip R. Thompson | 1989-01-03 |