
    No. 220.
    General Electric Co. et al. v. Robertson, Commissioner of Patents.
    
      Messrs. Harrison F. Lyman, Frederick P. Fish, and Charles E. Tullar for petitioners.
    October 21, 1929.
   Petition for writ of certiorari to the Circuit Court of Appeals for the Fourth Circuit denied.

Solicitor. General Hughes, Assistant Attorney General Galloway, and Messrs. Claude R. Branch and Harry E. Knight for respondent.  