WD Pennsylvania February 1973 casesKnuckles v. WaltersFekete v. United States Steel CorporationArtman v. International Harvester CompanyWestern Pennsylvania National Bank v. United StatesUnited Transp. U. v. Pittsburgh, Chartiers Y. Ry.Kolman v. KolmanCopperweld Steel Co. v. Demag-Mannesmann-BoehlerGuglielmo v. Scotti & Sons, Inc.