Piccardi
{{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=545373 |ApplicationDate=1895-04-11 |PatentNum=549166 |PatentDate=1895-11-05 |PriorityDate=1895-04-11 |Titolo=Fountain-pen |Marca=Swan |Descrizione=Sistem...