Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8039724 | Removable electronic drum head for an acoustic drum | James Glenn Norman, Jan Wissmuller | 2011-10-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8039724 | Removable electronic drum head for an acoustic drum | James Glenn Norman, Jan Wissmuller | 2011-10-18 |