Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4535441 | Communication system for stationary and mobile subscribers | Heinz Schwaertzel | 1985-08-13 |
| 4415981 | Multi-purpose terminal device having an input and control keyboard for connection to a data processing system and/or to an automatic text processing unit | David Cutter | 1983-11-15 |
| 4339658 | Method and a device for monitoring and minimizing light losses at a splicing location for glass fiber cables | Ingrid Fromm | 1982-07-13 |
| 4321703 | Transmission system for telecopying and electronic transmission of in-house mail | Heinz Schwaertzel | 1982-03-23 |