No. 6442. Heard September 13, 1965. Decided March 2, 1966. Morton Namrow, Atty., Washington, D.C., with whom Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Melvin J. Welles, Atty., N.L.R.B., Washington, D.C., were on brief, for petitioner. Herbert Burstein, New York City, with whom Zelby Burstein, New York City, was on brief, for respondents. Before ALDRICH, Chief Judge, J. WARREN MADDEN, Senior Judge, and JULIAN, District Judge