Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814207 | Method for making protective coatings | Werner Siol, Erwin Felger | 1989-03-21 |
WA
Werner Arnold
Overall (1989): #45,318 of 140,708Top 35%
1
Patents 1989