Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849326 | White light handeable direct-positive silver halide photographic elements | Alberto Vacca, Angelo Vallarino | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849326 | White light handeable direct-positive silver halide photographic elements | Alberto Vacca, Angelo Vallarino | 1989-07-18 |