Mt. Olive & Staunton Coal Co. v. Industrial Commission , 355 Ill. 222 ( 1934 )
Chmelik v. Vana , 31 Ill. 2d 272 ( 1964 )
Orr v. Industrial Commission , 47 Ill. 2d 242 ( 1970 )
Roberts & Oake v. Industrial Commission , 378 Ill. 612 ( 1942 )