Du Page Utility Co. v. Illinois Commerce Commission ( 1971 )
Citizens Utilities Co. v. Illinois Commerce Commission ( 1988 )
People Ex Rel. Hartigan v. Illinois Commerce Commission ( 1987 )
Cerro Copper Products v. Illinois Commerce Commission ( 1980 )
Business & Professional People for the Public Interest v. Illinois Commerce Commission ( 1990 )
Illinois Bell Telephone Co. v. IlliNois Commerce Commission ( 1953 )
Business & Professional People for the Public Interest v. Illinois Commerce Commission ( 1991 )
Coldwell Banker Residential Real Estate Services of Illinois, Inc. v. Clayton ( 1985 )