Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897861 | Primary radiation diaphragm for x-ray diagnostics equipments | Willi Schaefer, Guenter Bartmann | 1990-01-30 |
| 4207559 | Alarm system with acoustically coupled transmitters and receiver | — | 1980-06-10 |