No. 17739. June 10, 1970. As Amended July 7, 1970. Rehearing Denied August 31, 1970. R. Theodore Clark, Jr., Chicago, Ill., Frank H. Stewart, Charles D. Lindberg, Alan E. Harazin, Taft, Stettinius Hollister, Cincinnati, Ohio, for petitioner. Seyfarth, Shaw, Fairweather Geraldson, Chicago, Ill., of counsel. Marcel Mallet-Prevost, Asst. Gen. Counsel, Julius Rosenbaum, Atty., N.L.R.B., Washington, D.C., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Attys., N.L.R.B., for respondent