Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873174 | Method of using developer-finisher compositions for lithographic plates | Major S. Dhillon, Douglas A. Seeley | 1989-10-10 |
| 4851324 | Phenoxy propanol containing developer compositions for lithographic plates having neutral pH | — | 1989-07-25 |