Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674669 | Photographic elements containing oxonol filter dye mixture and their preparation | Donald R. Diehl | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674669 | Photographic elements containing oxonol filter dye mixture and their preparation | Donald R. Diehl | 1997-10-07 |