Piccardi
{{PatentInfo |Inventor=George W. Gilman |Assignee=Parker Pen Company |Country=US |ApplicationNum=513226 |ApplicationDate=1921-11-07 |PatentNum=1632371 |PatentDate=1927-06-14 |PriorityDate=1921-11-07 |Titolo=Pencil |Marca=Parker |Descrizione=Matita mecc...