Federal Circuit April 1930 casesRockwood v. United StatesHENRY VOGT MACH. CO. v. UNITED STATESGeorge A. Hormel Co. v. United StatesHoyt v. United StatesYork Safe Lock Co. v. United StatesRoy Titcomb v. United StatesHighland Milk Condensing Co. v. United StatesNational Equipment Co. v. United StatesWest Leechburg Steel Co. v. United StatesHelvetia Milk Condensing Co. v. United StatesB. Altman Co. v. United StatesPackard Motor Car Co. v. United StatesAtlas Powder Co. v. United States