Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835764 | Two-wire time-division multiplex method of full duplex transmission between a central station and a substation | Norbert Sulzbacher | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835764 | Two-wire time-division multiplex method of full duplex transmission between a central station and a substation | Norbert Sulzbacher | 1989-05-30 |