Piccardi
{{PatentInfo |Inventor=Walter J. Heagney |Assignee=The Parker Pen Company |Country=US |ApplicationNum=546589 |ApplicationDate=1944-07-26 |PatentNum=2406330 |PatentDate=1946-08-27 |PriorityDate=1944-07-26 |Titolo=Fountain pen filling unit |Marca=Parker ...