Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859578 | Photographic recording material providing improved granularity properties | Drake M. Michno, David A. Steele, David T. Southby | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859578 | Photographic recording material providing improved granularity properties | Drake M. Michno, David A. Steele, David T. Southby | 1989-08-22 |