Piccardi
{{PatentInfo |Inventor=Ivan D. Tefft |Assignee=Parker Pen Company |Country=US |ApplicationNum=530873 |ApplicationDate=1931-04-17 |PatentNum=1956084 |PatentDate=1934-04-24 |PriorityDate=1931-04-17 |Titolo=Desk set mounting |Marca=Parker |Descrizione=Bas...