Piccardi
{{PatentInfo |Inventor=Robert Back |Assignee=The Wahl Company |Country=US |ApplicationNum=32838 |ApplicationDate=1929-09-23 |PatentNum=D081223 |PatentDate=1930-05-27 |PriorityDate=1929-09-23 |Titolo=Design for a pencil |Marca=Eversharp |Descrizione=Cor...