Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829401 | Rotating transformer with foil windings | — | 1989-05-09 |
RV
Roger A. Vranken
Overall (1989): #60,603 of 140,708Top 45%
1
Patents 1989