621 A.2d 1078 EQUITABLE LIFE ASSURANCE SOCIETY OF THE UNITED STATES and Allied Dunbar Property, Inc., Appellants, v. M. Christine MURPHY, Revenue Commissioner and City of Philadelphia, Appellees. Commonwealth Court of Pennsylvania.Argued June 18, 1992. Decided February 5, 1993. Appeal from the Common Pleas Court of Philadelphia County, No. 4446 January Term, 1987, Bernard J. […]