Piccardi
{{PatentInfo |Inventor=Walter A. Sheaffer |Assignee=Walter A. Sheaffer |Country=US |ApplicationNum=517375 |ApplicationDate=1921-11-23 |PatentNum=1531419 |PatentDate=1925-03-31 |PriorityDate=1921-11-23 |Titolo=Pencil clip |Marca=Sheaffer |Descrizione=Cl...