
    (No. 6306
    Xerox Corporation, Claimant, vs. State of Illinois, Department of Public Aid, Respondent.
    
      Opinion filed January 11, 1972.
    
    Xerox Corporation, Claimant, pro se.
    William J. Scott, Attorney General; Edward L.S. Arkema, Jr., Assistant Attorney General, for Respondent.
   Perlin, C.J.  