Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7999164 | Valve mechanism for musical instrument and brass instrument provided with valve mechanism for musical instrument | — | 2011-08-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7999164 | Valve mechanism for musical instrument and brass instrument provided with valve mechanism for musical instrument | — | 2011-08-16 |