Piccardi
{{PatentInfo |Inventor=Milford G. Sypher |Assignee=Chilton Pen Company |Country=US |ApplicationNum=19910 |ApplicationDate=1935-05-06 |PatentNum=2089449 |PatentDate=1937-08-10 |PriorityDate=1935-05-06 |Titolo=Pen |Marca=Chilton |Modello=Wing-flow |Desc...