Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372445 | Writing unit for a cartridge fountain pen | — | 1994-12-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372445 | Writing unit for a cartridge fountain pen | — | 1994-12-13 |