Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4290142 | Interactive cable television system | Franz Kraus, Friedrich Kiel, Helmut Kliem, Wolfgang Krick, Herbert Landgraf | 1981-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4290142 | Interactive cable television system | Franz Kraus, Friedrich Kiel, Helmut Kliem, Wolfgang Krick, Herbert Landgraf | 1981-09-15 |