Piccardi
{{PatentInfo |Inventor=Henry C. Klagges |Assignee=The Esterbrook Steel Pen Manufacturing Co. |Country=US |ApplicationNum=479305 |ApplicationDate=1943-03-16 |PatentNum=2390541 |PatentDate=1945-12-11 |PriorityDate=1943-03-16 |Titolo=Writing implement |Ma...