WD Pennsylvania December 1989 casesZimmer v. Gruntal Co., Inc.Joy Mfg. Corp. v. Pullman-Peabody Co.Adams v. Ampco-Pittsburgh Corp.Metro. Pittsburgh Crusade v. PittsburghForemost Ins. Co. v. WeetmanLichtenstein v. Kidder, Peabody Co.E.E.O.C. v. U.S. Steel Corp.