Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817189 | Directional high frequency broadband transformer made by printed circuit technique | Heinz Pfizenmaier | 1989-03-28 |
ES
Ewald Schmidt
Overall (1989): #115,729 of 140,708Top 85%
1
Patents 1989