320 A.2d 440 City of Philadelphia, Appellant, v. Richard E. Murphy, Appellee. Commonwealth Court of Pennsylvania.Argued April 4, 1974 May 29, 1974. Employment — Regulation 32 of the Philadelphia Civil Service Commission — The Pennsylvania Workmen’s Compensation Act, Act 1915, June 2, P. L. 736 — Aggravation of a preexisting condition. 1. In cases brought […]