Piccardi
{{PatentInfo |Inventor=Andrew Stuart Horn |Assignee=Andrew Stuart Horn |Country=GB |ApplicationNum=11537/32 |ApplicationDate=1932-04-22 |PatentNum=396879 |PatentDate=1933-08-17 |PriorityDate=1932-04-22 |Marca=Unbranded |Titolo=Improvements in or relati...