
    Nos. 599 and 600.
    Lind et al. v. Coe, Commissioner of Patents.
    December 4, 1944.
    
      Messrs. Nelson Littell, Robert C. Watson, and Francis G. Cole for petitioners.
    
      Solicitor General Fahy, Assistant Attorney General Shea, and Messrs. Joseph Y.. Houghton and W. W. Cochran for respondent.
   Petition for writs of certiorari to the United States Court of Appeals for the District of Columbia denied.  