Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965833 | Rotary valve for a musical instrument | — | 1999-10-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965833 | Rotary valve for a musical instrument | — | 1999-10-12 |