Piccardi
{{PatentInfo |Inventor=Paul E. Wirt |Assignee=Paul E. Wirt |Country=US |ApplicationNum=311554 |ApplicationDate=1894-01-17 |PatentNum=526428 |PatentDate=1894-09-25 |PriorityDate=1894-01-17 |Titolo=Fountain-pen |Marca=Wirt |Descrizione=Cappuccio a tenuta...