Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475433 | Capo for a stringed musical instrument | John G. Williamson | 1984-10-09 |
| D270918 | Capo for a stringed musical instrument | John G. Williamson | 1983-10-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475433 | Capo for a stringed musical instrument | John G. Williamson | 1984-10-09 |
| D270918 | Capo for a stringed musical instrument | John G. Williamson | 1983-10-11 |