Piccardi
{{PatentInfo |Inventor=Albert Meredith Spain |Assignee=Albert Meredith Spain |Country=GB |ApplicationNum=4974/30 |ApplicationDate=1930-02-14 |PatentNum=344185 |PatentDate=1931-03-05 |PriorityDate=1930-02-14 |Titolo=Improvements in and relating to fount...