Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6594274 | Detection circuit for detecting state of use of B channel and ISDN terminal using the same detection circuit | — | 2003-07-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6594274 | Detection circuit for detecting state of use of B channel and ISDN terminal using the same detection circuit | — | 2003-07-15 |