No. 289, Docket 23943. Argued April 3, 1956. Decided May 9, 1956. Theophil C. Kammholz, Gen. Counsel, David P. Findling, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Frederick U. Reel, James A. Ryan, Attys., National Labor Relations Board, Washington, D.C., for petitioner. Rabinowitz Boudin, New York City, for respondents. Before FRANK, MEDINA and WATERMAN, Circuit Judges. MEDINA, Circuit Judge. Brooklyn Spring Corporation and Lorraine Fibre Mills, Inc. were affiliated companies