312 A.2d 460 United States Steel Corporation, Appellant v. Commonwealth of Pennsylvania Unemployment Compensation Board of Review, Appellee, and William Marovich, Intervening Appellee. Commonwealth Court of Pennsylvania.Argued September 11, 1973 November 21, 1973. Unemployment compensation — Scope of appellate review — Error of law — Findings of fact — Sufficient evidence — Unemployment Compensation Law, […]