Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842987 | Photosensitive element for producing printing plates or resist images | Albert Elzer, Axel Sanner, Hans Schupp | 1989-06-27 |
EB
Erich Beck
Overall (1989): #116,817 of 140,708Top 85%
1
Patents 1989