Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849328 | Cyan dye-forming couplers and photographic materials containing same | Kenneth N. Kilminster | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849328 | Cyan dye-forming couplers and photographic materials containing same | Kenneth N. Kilminster | 1989-07-18 |