
    No. 731.
    Minnesota Mining & Manufacturing Co. v. Coe, Commissioner of Patents.
    April 17, 1939.
   Petition for writ of. certiorari to the Court of Appeals for • the District of Columbia denied.

Messrs. Paul Carpenter, William H. Abbott, and Laurence B. Dodds for petitioner.

Solicitor General Jackson, Assistant Attorney General Whitaker, and Messrs. Paul A. Sweeney and R. F. Whitehead for respondent.  