Piccardi
{{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=668299 |ApplicationDate=1898-01-28 |PatentNum=614630 |PatentDate=1898-11-22 |PriorityDate=1898-01-28 |Titolo=Fountain-pen |Marca=Swan |Descrizione=Chiusu...