WD Pennsylvania February 1977 casesMandel v. ScanlonThermo-Sentinel Corp. v. Clad Metals, Inc.U.S. v. ForsytheDaugherty v. United StatesDuncan v. Dravo Corp.Phillips v. AllenHages v. Aliquippa Southern R. Co.Swindell v. Guyandotte W S Development Ass'nPittsburgh Press Club v. United States