Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885607 | Method and device for selecting the appropriate contrast grade photographic for printing a black and white transparency | — | 1989-12-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885607 | Method and device for selecting the appropriate contrast grade photographic for printing a black and white transparency | — | 1989-12-05 |