Piccardi
{{PatentInfo |Inventor=Reinhold Lotterer |Assignee=David Kahn Inc |Country=US |ApplicationNum=65710 |ApplicationDate=1936-02-25 |PatentNum=2093919 |PatentDate=1937-03-30 |PriorityDate=1936-02-25 |Titolo=Runner tube for mechanical pencils |Marca=Weareve...