Riga 4: |
Riga 4: |
| |Country=US | | |Country=US |
| |ApplicationNum=3483 | | |ApplicationNum=3483 |
− | |ApplicationDate=1899-12-05 | + | |ApplicationDate=1900-01-31 |
| |PatentNum=651737 | | |PatentNum=651737 |
| |PatentDate=1900-06-12 | | |PatentDate=1900-06-12 |
− | |PriorityDate=1899-12-05 | + | |PriorityDate=1900-01-31 |
| |Titolo=Fountain-pen | | |Titolo=Fountain-pen |
| |Marca=Wirt | | |Marca=Wirt |