No. 20042. March 1, 1971. Alan I. Berger, Gerald Tockman, McMahon Berger, St. Louis, Mo., for petitioner. Eli Nash, Jr., Atty., N.L.R.B., Washington, D.C., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Allison W. Brown, Jr., Attys., N.L.R.B., for respondent. Before GIBSON and BRIGHT, Circuit Judges, and McMANUS, Chief District Judge. PER CURIAM. The National Labor Relations Board determined that Marine Welding and Repair Works