Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681661 | Detachable and adjustable sound and feedback control device for stringed musical instruments having a hollow body with a sound hole | — | 2004-01-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681661 | Detachable and adjustable sound and feedback control device for stringed musical instruments having a hollow body with a sound hole | — | 2004-01-27 |