Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961180 | Arrangements for producing and recognizing information identifying non-occupied transmission paths in a digital transmission system | Dieter Schwarz | 1990-10-02 |
| 4947391 | Arrangements for producing and recognizing information identifying non-occupied transmission paths in a digital transmission system | Dieter Schwarz | 1990-08-07 |