
    No. 488.
    Spang et al., doing business as Cube Steak Machine Co., v. Watson, Commissioner of Patents.
    
      Cedric W. Porter for petitioners. Acting Solicitor General Stern, Assistant Attorney General Burger, Melvin Richter and Hubert H. Margolies for respondent.
   United States Court of Appeals for the District of Columbia Circuit. Certiorari denied.  