Piccardi
{{PatentInfo |Inventor=Roland L. Brannon |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=433542 |ApplicationDate=1954-06-01 |PatentNum=2831460 |PatentDate=1958-04-22 |PriorityDate=1954-06-01 |Titolo=Writing instrument |Marca=Sheaffer |...