Piccardi
{{PatentInfo |Inventor=Ernest M. Wade |Assignee=Ernest M. Wade |Country=GB |ApplicationNum=36169/32 |ApplicationDate=1932-12-21 |PatentNum=409074 |PatentDate=1934-04-26 |PriorityDate=1932-12-21 |Titolo=Improvements in or relating to Pencils |Marca=Lang...