Piccardi
{{PatentInfo |Inventor=Ernest W. Rickmeyer |Assignee=The Parker Pen Company, Janesville |Country=US |ApplicationNum=48836 |ApplicationDate=1948-09-11 |PatentNum=2684052 |PatentDate=1954-07-20 |PriorityDate=1948-09-11 |Titolo=Writing instrument |Marca...