Piccardi
{{PatentInfo |Inventor=Alfred Finburgh, David Finburgh, Alexander Finburgh |Assignee=The Wywern Pen Company |Country=GB |ApplicationNum=27675/26 |ApplicationDate=1926-11-04 |PatentNum=283677 |PatentDate=1928-01-19 |PriorityDate=1926-11-04 |Titolo=Impr...