Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643376 | Method and apparatus for individual control of audio to loudspeakers located from a central control | Mark S. Ackerman, Richard L. Liddell | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643376 | Method and apparatus for individual control of audio to loudspeakers located from a central control | Mark S. Ackerman, Richard L. Liddell | 2003-11-04 |