Piccardi
{{PatentInfo |Inventor=Bjorn Andersen, Carsten Lyng |Assignee=Celluloid Corporation |Country=US |ApplicationNum=423430 |ApplicationDate=1930-01-25 |PatentNum=1909795 |PatentDate=1933-05-16 |PriorityDate=1930-01-25 |Titolo=Coated cellulosic plastic |M...