Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679468 | Pen box structure having the function of a book support shelf | — | 2004-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679468 | Pen box structure having the function of a book support shelf | — | 2004-01-20 |