D. Puerto Rico May 1971 casesAyala v. Secretary of Health, Education and WelfareCardona v. Secretary of H., E., W.Salgado v. Employers Ins. of WausauRexco Indus. v. Commercial Ins. Co. of Newark, N.J.Inversiones Financieras C. Por A. v. Hitachi Sales Caribe, Inc.Franqui v. Secretary of Health, Education WelfareSears Roebuck Co. v. Herbert H. Johnson Ass.