Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346963 | Liquid crystal display device | Hans Krueger | 1982-08-31 |
| 4340838 | Control plate for a gas discharge display device | Burkhard Littwin, Rolf Wengert | 1982-07-20 |
| 4325002 | Luminescent screen for flat image display devices | Hans Lorenz, Kaspar Weingand, Rolf Wengert | 1982-04-13 |