Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4185174 | Method and apparatus for checking connection paths in a telephone exchange | Jean-Jacques Bronner, Jean-Claude Fuhrer, Henri Kraess | 1980-01-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4185174 | Method and apparatus for checking connection paths in a telephone exchange | Jean-Jacques Bronner, Jean-Claude Fuhrer, Henri Kraess | 1980-01-22 |