
    
      Certiorari Denied.
    
    No. 523.
    T. M. Duche & Sons, Inc. v. United States.
    
      Albert MacC. Barnes and J. Bradley Colburn for petitioner. Solicitor General Perl-man, Assistant Attorney General Edelstein and John B. Benney for the United States.
   United States Court of Customs and Patent Appeals. Certiorari denied.  