
    (No. 5992
    Otis Elevator Company, Claimant, vs. State of Illinois, Department of General Services, Respondent.
    
      
      Opinion filed April 27, 1971.
    
    McLaughlin, Kinser and Bryant, Attorneys for Claimant.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  