Piccardi
{{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=619518 |ApplicationDate=1945-10-01 |PatentNum=2428854 |PatentDate=1947-10-14 |PriorityDate=1945-10-01 |Titolo=Writing instrument |Marca=Parker |Descr...