Piccardi
{{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=606105 |ApplicationDate=1896-09-17 |PatentNum=588708 |PatentDate=1897-08-24 |PriorityDate=1896-09-17 |Titolo=Fountain-pen |Marca=Swan |Descrizione=Sistem...