National Labor Relations Board v. Columbian Enameling & Stamping Co. , 59 S. Ct. 501 ( 1939 )
National Labor Relations Board v. Jones & Laughlin Steel Corp. , 57 S. Ct. 615 ( 1937 )
National Labor Relations Board v. Transportation Management Corp. , 103 S. Ct. 2469 ( 1983 )