
    (No. 6789
    3M Business Products Sales, Inc., Claimant, vs. State of Illinois, Department of Corrections, Respondent.
    
      Opinion filed September 5, 1972.
    
    3M Business Products Sales, Inc., Claimant, pro se.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  