Civ. No. 15305. May 11, 1964. Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, and Julius G. Serot, Asst. Gen. Counsel, National Labor Relations Board, Washington, D.C., and David C. Sachs, Regional Atty., Henry L. Segal, Asst. Regional Atty. and Edward J. Gutman, Atty., National Labor Relations Board, Region 5, Baltimore, Md., for petitioner. Jacob J. Edelman and Bernard W. Rubenstein, Baltimore, Md., for respondents. THOMSEN, Chief Judge. In this proceeding under sec. 10( l)