426 A.2d 728 Amoco Oil Company, Appellant v. Ross Township Zoning Hearing Board and Ross Township, Appellees. Commonwealth Court of Pennsylvania.Argued November 17, 1980 March 9, 1981. Zoning — Nonconforming use — Expansion — Modernization — Gasoline station — Self-service — Variance. 1. The zoning doctrine that permits the expansion of nonconforming uses accommodates the […]