Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4451497 | Process for the pretreatment of photographic substrates | Friedrich Dolezalek, Gunther Koepke | 1984-05-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4451497 | Process for the pretreatment of photographic substrates | Friedrich Dolezalek, Gunther Koepke | 1984-05-29 |