Piccardi
{{PatentInfo |Inventor=William F. Duryea |Assignee=William F. Duryea |Country=US |ApplicationNum=671878 |ApplicationDate=1912-01-18 |PatentNum=1049465 |PatentDate=1913-01-07 |PriorityDate=1912-01-18 |Titolo=Self-filling pen |Marca=Salz |Descrizione=Sis...