Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6507659 | Microphone apparatus for producing signals for surround reproduction | Roger S. Keller | 2003-01-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6507659 | Microphone apparatus for producing signals for surround reproduction | Roger S. Keller | 2003-01-14 |