Piccardi
{{PatentInfo |Inventor=John C. Wahl |Assignee=The Wahl Company |Country=US |ApplicationNum=210517 |ApplicationDate=1918-01-05 |PatentNum=1301341 |PatentDate=1919-02-22 |PriorityDate=1918-01-05 |Titolo=Self-feeding pencil |Marca=Eversharp |Descrizione=M...