No. 17, Docket 21624. Argued October 4, 1950. Decided November 9, 1950. Owsley Vose, Washington, D.C., Atty., National Labor Relations Board (David P. Findling, Asso. Gen. Counsel, A. Norman Somers, Asst. Gen. Counsel, and George H. Plaut, Atty., National Labor Relations Board, all of Washington, D.C., on the brief), for petitioner. Adolph I. King, Brooklyn, N.Y. (Leonard P. Walsh, Washington, D.C., and Angelo A. Tumminelli, Brooklyn, N.Y., on the brief), for respondent. Before LEARNED HAND, Chief