Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681020 | Microphone circuit with mute and keep alive function | Costas Papopoulos, David J. Truesdell | 2004-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681020 | Microphone circuit with mute and keep alive function | Costas Papopoulos, David J. Truesdell | 2004-01-20 |