Piccardi
{{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=39636 |ApplicationDate=1900-12-13 |PatentNum=668760 |PatentDate=1901-02-26 |PriorityDate=1900-12-13 |Titolo=Fountain-pen |Marca=Swan |Descrizione=Chiusur...