Piccardi
{{PatentInfo |Inventor=Kenneth Buckingham Robinson |Assignee=Harry C. Stephens Limited |Country=GB |ApplicationNum=31008/56 |ApplicationDate=1956-10-11 |PatentNum=807974 |PatentDate=1959-01-28 |PriorityDate=1956-10-11 |Titolo=Improvements in or relatin...