Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328797 | Process for producing a negative-working lithographic printing form utilizing solvent mixture of mono-(C.sub.1 -C.sub.4) alkyl ether of diethylene glycol and a solvent having boiling point between 50.degree. and 150.degree. C. | Roman Keiper, Siegfried Nuernberger, Sabine Pilger | 1994-07-12 |