Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4604634 | Apparatus for recording and reproducing an electrographic image | Ingmar Feigt, Gottfried Lange | 1986-08-05 |
| 4269483 | Electro-optical voltage measurement device | — | 1981-05-26 |