WD Pennsylvania January 1962 casesLevin v. Trans World Airlines, Inc.United States v. ConstantinoUnited States v. DarbyIn re MengelFaudree v. Iron City Sand Gravel CompanyPittsburgh Hotels Ass'n, Inc. v. Urban Redevelopment Authority of PittsburghRinker v. Local Union No. 24 of Amal. Lithog.United States v. Pine Tp. Coal Co.United States v. Koppers CompanyUnited States v. HughesArmco Steel Corp. v. United States Steel Corp.