Piccardi
{{PatentInfo |Inventor=Kenneth S. Parker |Assignee=The Parker Pen Company |Country=US |ApplicationNum=584054 |ApplicationDate=1945-03-22 |PatentNum=2506035 |PatentDate=1950-05-02 |PriorityDate=1945-03-22 |Titolo=Writing instrument |Marca=Parker |Descri...