(372 P.2d 744) MARY JO McKENNA, ADMINISTRATRIX, ET AL., v. JOSEPH F. NIGRO, ET AL. No. 20,027.Supreme Court of Colorado. Decided June 25, 1962. Rehearing denied July 23, 1962. Action by carrier to enjoin interference by Public Utilities Commission with operations claimed under certificate. Judgment for defendants. Affirmed. 1. PUBLIC UTILITIES COMMISSION — Certificate — […]