Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865956 | Photographic elements containing a bleach accelerator precursor | Stephen P. Singer | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865956 | Photographic elements containing a bleach accelerator precursor | Stephen P. Singer | 1989-09-12 |