Piccardi
{{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=690971 |ApplicationDate=1946-08-16 |PatentNum=2454086 |PatentDate=1948-11-16 |PriorityDate=1946-08-16 |Titolo=Ball-point writing instrument |Marca=Pa...