Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469237 | Apparatus for opening and closing top board of grand piano | — | 2002-10-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469237 | Apparatus for opening and closing top board of grand piano | — | 2002-10-22 |