Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812867 | Apparatus for processing an exposed photographic film wound on a spool | Richard J. Brent | 1989-03-14 |
| 4812882 | Contrast monitor | Richard J. Brent | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812867 | Apparatus for processing an exposed photographic film wound on a spool | Richard J. Brent | 1989-03-14 |
| 4812882 | Contrast monitor | Richard J. Brent | 1989-03-14 |