Court of Appeals for the Third Circuit September 1950 casesHealy v. Pennsylvania R. Co.United States v. PetrieUnited States v. LemboAllen B. Dumont Laboratories v. CarrollEtten v. Lovell Mfg. Co.Higgs' Estate v. Commr. of Internal RevenueCommissioner of Internal Revenue v. SwitlikCookingham v. United States