Nos. 22318, 22414. Argued December 15, 1969. Decided May 4, 1970. Miss Judith A. Lonnquist, Chicago, Ill., with whom Messrs. Mozart G. Ratner and Albert Gore, Chicago, Ill., were on the brief, for petitioner in No. 22,318 and intervenor in No. 22,414. Mr. Baruch A. Fellner, Atty., National Labor Relations Board, for petitioner in No. 22,414 and respondent in No. 22,318. Messrs. Arnold Ordman, Gen. Counsel, National Labor Relations Board, Dominick L. Manoli, Associate Gen. Counsel, and Marcel Mallet-Prevost