Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4287393 | Transmission bridge for a subscriber's circuit | — | 1981-09-01 |
| 4234763 | Feeding bridge with d.c.-compensation for both directions of the feed current | Eise C. Dijkmans, Barend Ijff | 1980-11-18 |