Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619152 | Circuit arrangement for supplying an alternating signal current | Andreas Wichern | 1997-04-08 |
KH
Knud Holtvoeth
Overall (1997): #117,302 of 185,788Top 65%
1
Patents 1997