Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877853 | Polymethyl methacrylate molding compounds | Werner Siol, Ernst Heil, Franz Wenzel, Ulrich Terbrack | 1989-10-31 |
PA
Peter J. Arndt
Overall (1989): #70,217 of 140,708Top 50%
1
Patents 1989