Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661850 | Testing system of voice-band data transmission interface on an exchange | — | 2003-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661850 | Testing system of voice-band data transmission interface on an exchange | — | 2003-12-09 |