Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811335 | Broadband/narrow-band switching network of the time-space-time type and time and space switching stages for broadband/narrow-band channels | Johannes van Baardwijk | 1989-03-07 |
| 4809263 | T-type switching system for broadband switching system and time switching stage for use in a t-stage | Johannes van Baardwijk | 1989-02-28 |