National Labor Relations Board v. Link-Belt Co. , 61 S. Ct. 358 ( 1941 )
Thomas v. Petrulis , 125 Ill. App. 3d 415 ( 1984 )
Universal Camera Corp. v. National Labor Relations Board , 71 S. Ct. 456 ( 1951 )
National Labor Relations Board v. Industrial Union of Marine & Shipbuilding Workers of America , 88 S. Ct. 1717 ( 1968 )
Richardson v. Perales , 91 S. Ct. 1420 ( 1971 )