Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837373 | Test strips | Helmuth Krauss | 1989-06-06 |
WG
Werner Gunkel
Overall (1989): #45,203 of 140,708Top 35%
1
Patents 1989