Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816379 | Production of relief plates and printing plates by a positive-working method | Bernd Bronstert, Gerhard Hoffmann | 1989-03-28 |
JL
John Lynch
Overall (1989): #94,246 of 140,708Top 70%
1
Patents 1989