Chmelik v. Vana , 31 Ill. 2d 272 ( 1964 )
Fisher Body Division v. Industrial Commission , 40 Ill. 2d 514 ( 1968 )
Aaron v. Industrial Commission , 59 Ill. 2d 267 ( 1974 )
Deal v. Industrial Commission , 65 Ill. 2d 234 ( 1976 )