
    No. 511.
    Martin et al., doing business as Nemec Combustion Engineers, v. National Labor Relations Board.
    
      R. D. Sweeney and J. E. Simpson for petitioners.
    
      Acting Solicitor General Stern, George J. Bott, David P. Findling and Dominick L. Manoli for respondent.
   C. A. 9th Cir. Certiorari denied.  