No. 80-1283. Argued June 3, 1980. July 21, 1980. Warren D. Krebs, Parr, Richey, Obremskey Morton, Lebanon, Ind., for petitioner. Richard Michael Fischl, N.L.R.B., Washington, D.C., for respondent. Petition for review from the National Labor Relations Board. Before SPRECHER and CUDAHY, Circuit Judges, and CAMPBELL, Senior District Judge. Senior District Judge William J. Campbell of the Northern District of Illinois is sitting by designation SPRECHER, Circuit Judge. This review causes us to examine