Piccardi
{{PatentInfo |Inventor=Andreas Bienenstein |Assignee=The Conklin Pen Manufacturing Company |Country=US |ApplicationNum=694824 |ApplicationDate=1924-02-25 |PatentNum=1561590 |PatentDate=1925-11-17 |PriorityDate=1924-02-25 |Titolo=Fountain pen |Marca=Con...