Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809064 | Enlarging photographic printer | Shaun M. Amos, Richard J. Backus | 1989-02-28 |
| 4804990 | Automatic liquid feed and circulation system for a photographic film processor | — | 1989-02-14 |