D. Puerto Rico February 1971 casesAyala v. Secretary of Health, Ed. and WelfareRodriguez v. Maryland Casualty CompanyPowell v. Int'l Foodservice Sys., Inc.Hilton Intern. Co. v. Asociacion De Empleados De Casino De Puerto RicoTommills Brokerage Co. v. ThonNarvaez v. British American Insurance CompanyUnited States v. Puerto Rico Independence PartyRamos v. National Biscuit Co.