Court of Appeals for the Third Circuit July 1930 casesHeiner v. Erie Coal Coke Co.American Engineering Co. v. Underfeed Stoker Co. of AmericaEnameled Metals v. Commr. of Internal RevenueKuhn v. United StatesGerber v. SchofieldBennett's Estate v. SproulMcGANN MFG. CO. v. RUGGLESCOLES ENG'G COP. Sanford Ross, Inc. v. Public Service Corp.Bok v. McCaughnH.F. Watson Co. v. Atlantic Refining Co.J. Rogers Flannery v. Commr. of Internal RevenueMUTUAL AID BENEFIT v. COMMR. OF INT. REVFidelity & Deposit Co. of Maryland v. LeibGrillo v. United StatesDuplate Corporation v. Triplex Safety Glass Co.