Piccardi
{{PatentInfo |Inventor=Philip C. Hull |Assignee=The Parker Pen Company |Country=US |ApplicationNum=25450 |ApplicationDate=1948-03-06 |PatentNum=2598171 |PatentDate=1952-05-27 |PriorityDate=1948-03-06 |Titolo=Nib for writing pens |Marca=Parker |Descrizi...