Piccardi
{{PatentInfo |Inventor=Gerald L. Bassett |Assignee=The Conklin Pen Manufacturing Company |Country=US |ApplicationNum=710448 |ApplicationDate=1934-02-09 |PatentNum=1965626 |PatentDate=1934-07-10 |PriorityDate=1934-02-09 |Titolo=Twisting filler pen |Marc...