479 A.2d 10 Frank J. Schneider, Sr. and Hildegarde M. Schneider, Petitioners v. Pennsylvania Public Utility Commission, Respondent. Commonwealth Court of Pennsylvania.Argued October 5, 1983 June 20, 1984. Pennsylvania Public Utility Commission — Certificate of public convenience — Scope of appellate review — Error of law — Insufficient evidence — Violation of constitutional rights — […]