Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360454 | Tanning of leather and fur | Knut Oppenlaender, Hermann Birkhofer, Brigitte Wegner, Johannes P. Dix | 1994-11-01 |
NG
Norbert Grief
Overall (1994): #86,894 of 165,921Top 55%
1
Patents 1994