Piccardi
{{PatentInfo |Inventor=Joseph Wallace |Assignee=Joseph Aversa |Country=US |ApplicationNum=29005 |ApplicationDate=1935-06-29 |PatentNum=2111518 |PatentDate=1938-03-15 |PriorityDate=1935-06-29 |Titolo=Fountain pen attachment |Marca=Inkograph |Descrizione...