Piccardi
{{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=709891 |ApplicationDate=1899-03-21 |PatentNum=630527 |PatentDate=1899-08-08 |PriorityDate=1899-03-21 |Titolo=Self-filling fountain-pen |Marca=Swan |Descr...