D. Massachusetts April 1950 casesJansson v. Swedish American LineNorry Elec. Corp. v. H. & B. American Mach. Co.United States v. Cowen's EstateKendall Co. v. Tetley Tea Co.Hoague-Sprague Corp. v. Bird & SonBrody v. Columbia Pictures Corp.United States v. United Shoe Machinery Corp.