
    No. 292.
    United Mine Workers of America et al. v. National Labor Relations Board.
    
      Edward L. Carey, Harrison Combs, Willard Owens, and M. E. Boiarsky for petitioners.
    
      Solicitor General Griswold, Arnold Ordman, Dominick L. Manoli, and Norton J. Come for respondent.
   C. A. 6th Cir. Certiorari denied.  