Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853957 | Telecommunication switching systems with a central switching and local sub-switching | Helmut Seeger, Anthony Maher | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853957 | Telecommunication switching systems with a central switching and local sub-switching | Helmut Seeger, Anthony Maher | 1989-08-01 |