Piccardi
{{PatentInfo |Inventor=Harry C. Johnson, Ernest M. Wade |Assignee=The Lang Pen Company Limited |Country=US |ApplicationNum=710224 |ApplicationDate=1912-07-18 |PatentNum=1124454 |PatentDate=1915-01-12 |PriorityDate=1912-07-18 |Titolo=Fountain or reservo...