ED Pennsylvania September 1948 casesPhilco Corporation v. American Telephone Tel. Co.F. G. Vogts&sSons, Inc. v. United StatesLudgate v. MillerRodgers v. United StatesGaynor v. Atlantic Greyhound Corp.Windmassinger v. H. S. Gettys&sCo.Campbell Soup Co. v. Armour Co.Armstrong Cork Co. v. Farrell Line, Inc.Fornwalt v. Reading Co.