No. 16942. June 13, 1969. Frank C. Heath, Stuart O.H. Merz, Cleveland, Ohio, for petitioner, Jones, Day, Cockley Reavis, Cleveland, Ohio, of counsel. Stanley Lubin, Stephen I. Schlossberg, Detroit, Mich., for intervenor. Marcel Mallet-Prevost, Asst. Gen. Counsel, Nancy M. Sherman, Atty., N.L.R.B., Washington, D.C., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, Herbert Fishgold, Atty., N.L.R.B., for respondent. Before DUFFY, Senior Circuit Judge, FAIRCHILD and KERNER, Circuit