Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864248 | Amplifier arrangement with controllable gain | — | 1989-09-05 |
WJ
Winfrid B. Jansen
Overall (1989): #43,982 of 140,708Top 35%
1
Patents 1989