No. 71-1194. Argued February 1, 1972. Decided July 7, 1972. J. Paige Clousson, Naphin, Banta Cox, by James Robert Cox, Chicago, Ill., for petitioners. Marjorie S. Gofreed, Atty., Marcel Mallet-Prevost, N.L.R.B., Washington, D.C., Eugene G. Goslee, Acting General Counsel, Dominick L. Manoli Associate General Counsel Elliott Moore, Atty., N.L.R.B., for respondent. Petition for review from the NLRB. Before SWYGERT, Chief Judge, and KILEY and SPRECHER, Circuit Judges. KILEY, Circuit Judge. Petitioner