Piccardi
{{PatentInfo |Inventor=Richard J. Mansheim |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=603646 |ApplicationDate=1956-08-13 |PatentNum=2935967 |PatentDate=1960-05-10 |PriorityDate=1956-08-13 |Titolo=Writing instrument |Marca=Sheaffer...