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{{PatentInfo |Inventor=Henry J. Upton |Assignee=Chilton Pen Company |Country=US |ApplicationNum=390754 |ApplicationDate=1929-09-06 |PatentNum=1883160 |PatentDate=1932-10-18 |PriorityDate=1929-09-06 |Titolo=Frictional packing |Marca=Chilton |Descrizion...