No. 78-1011. Argued April 14, 1980. Decided June 5, 1980. George M. Mauer, Jr., Kenneth W. Kalls, Detroit, Mich., for petitioner. Elliott Moore, John D. Burgoyne, Deputy Associate Gen. Counsel, Michael Messitte, N.L.R.B., Washington, D.C., for N.L.R.B. Petition for review from the National Labor Relations Board. Before WEICK, Circuit Judge, and PHILLIPS and PECK, Senior Circuit Judges. HARRY PHILLIPS, Senior Circuit Judge. This case is before the court on the petition of the Pattern Makers' Association