
    No. 851.
    Cuno Engineering Corporation v. Automatic Devices Corporation.
    April 14, 1941.
    
      Mr. Roberts B. Larson for petitioner.
   Petition for writ of certiorari to the Circuit Court of Appeals for the Second Circuit granted, limited to the question whether claims 2, 3, and 11, of the Mead patent No. 1,736,544 are valid.  