Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723908 | Pick guard with electronic control housing and interface for acoustic guitar | Keith L. Chapman, Shawn Greene | 2004-04-20 |
| 6694029 | Unobtrusive removal of periodic noise | Dale Curtis | 2004-02-17 |