No. 18937. October 17, 1969. Charles A. Kothe, Tulsa, Okla., for petitioner, C.A. Kothe, Kothe, Eagleton Hall, Glenn R. Beustring, Jeff Nix, Tulsa, Okla., on brief. Edward E. Wall, NLRB, Washington, D.C., for respondent. Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Eugene B. Granof, Atty., NLRB, Washington, D.C., on brief. Richard H. Markowitz, Philadelphia, Pa., for intervenor, Wilderman, Markowitz Kirschner, Philadelphia, Pa.,