
    No. 454.
    Mastro Plastics Corp. et al. v. National Labor
    
      Bernard H. Fitzpatrick for petitioners.
    
      Solicitor General Sobeloff, George J. Bott, David P. Findling, Dominick L. Manoli and Harvey B. Diamond for respondent.
   Relations Board. C. A. 2d Cir. Certiorari granted.  