Eagle-Picher Lead Company. No. 1521, in circuit court of appeals for 10th circuit, Jan. term, 1937, Daniel M. Lyons, trial examiner and agent of National Labor Relations Board (denominated John Doe herein), and George O. Pratt, attorney and agent of National Labor Relations Board, v. Eagle-Picher Lead Company and Eagle-Picher Mining & Smelting Company; appellants' brief.