Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4399532 | Methods of and systems for monitoring a first call connection while effecting the establishment of a second call connection | Jamie J. Marschner | 1983-08-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4399532 | Methods of and systems for monitoring a first call connection while effecting the establishment of a second call connection | Jamie J. Marschner | 1983-08-16 |