Piccardi
{{PatentInfo |Inventor=Robert Back |Assignee=The Wahl Company |Country=US |ApplicationNum=57467 |ApplicationDate=1935-12-09 |PatentNum=2151548 |PatentDate=1939-03-21 |PriorityDate=1935-12-09 |Titolo=Decorative tubular article of pyroxylin or the like |...