
    GEORGE C. BEIDLER v. THE UNITED STATES.
    [Not reported in C. Cls. R.; 253 U. S., 447.]
    Judgment was rendered in favor of thb defendants in the court below. On appeal the judgment was affirmed, and the Supreme Court decided:
    Patent No. 1057397, granted to George C. Beidler, March 25, 1913, for an improvement in photographing and developing apparatus, does not contain a description of the claimed discovery adequate to render it useful, and is therefore invalid for failure to disclose a practical invention.
   Mr. Justice Clarke

delivered the opinion of the Supreme Court June 7, 1920.  