Piccardi
{{PatentInfo |Inventor=Jonh George Burnham |Assignee=H. Burnham & Sons |Country=GB |ApplicationNum=23453/49 |ApplicationDate=1949-09-10 |PatentNum=688902 |PatentDate=1953-03-18 |PriorityDate=1949-09-10 |Titolo=Improvements relating to fountain pens |Ma...