Piccardi
{{PatentInfo |Inventor=John L. De Maria |Assignee=Settles Pen Company |Country=US |ApplicationNum=240352 |ApplicationDate=1918-06-17 |PatentNum=1372011 |PatentDate=1921-03-22 |PriorityDate=1918-06-17 |Titolo=Fountain-pen attachment |Marca=Security Pen...