
    No. 1010.
    Knowles Electronics, Inc., et al. v. Tibbetts Industries, Inc., et al.
    
      Wilfred S. Stone and Anthony S. Zummer for petitioners. David L. Ladd, Dugald S. McDougall and Charles S. Grover for respondents.
   C. A. 7th Cir. Cer-tiorari denied.  