Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473835 | Method for manufacturing a percussion instrument | David Frederick McDevitt | 2009-01-06 |
| 7402739 | Method for manufacturing a percussion instrument | David Frederick McDevitt | 2008-07-22 |
| 7310866 | Method for manufacturing a percussion instrument | David Frederick McDevitt | 2007-12-25 |
| 7307205 | Method for manufacturing a percussion instrument | David Frederick McDevitt | 2007-12-11 |