Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4276642 | Process for the frame synchronization of a time division multiplex system | Joachim Siglow, Sigmar Grutzmann | 1981-06-30 |
| 4271508 | Method for transmitting data | — | 1981-06-02 |