Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6574875 | Pencil sharpener and method | Hans P. U. Verswijver | 2003-06-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6574875 | Pencil sharpener and method | Hans P. U. Verswijver | 2003-06-10 |