Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818341 | Production of paper and paperboard of high dry strength | Hans-Juergen Degen, Sigberg Pfohl, Gerd Rehmer, Michael Kroener, Andreas Stange | 1989-04-04 |
VW
Volkmar Weberndoerfer
Overall (1989): #46,209 of 140,708Top 35%
1
Patents 1989