Mechanics Universal Joint Division, Borg-Warner Corp. v. Industrial Commission , 21 Ill. 2d 535 ( 1961 )
Clifford-Jacobs Forging Co. v. Industrial Commission , 19 Ill. 2d 236 ( 1960 )
Gould National Batteries, Inc. v. Industrial Commission , 34 Ill. 2d 151 ( 1966 )