No. 83-2134. Nos. 83-2134, 83-2424. Argued February 24, 1984. Decided June 20, 1984. As Amended July 26, 1984. Allen E. Christy, Jr., Hadlick Hoedeman, P.C., Minneapolis, Minn., for petitioner. Patrick Szymanski, Elliott Moore, N.L.R.B., Washington, D.C., for respondent. Petition for review from the NLRB. Before WOOD and COFFEY, Circuit Judges, and HENLEY, Senior Circuit Judge. The Honorable J. Smith Henley, Senior Circuit Judge of the United States Court of Appeals, Eighth Circuit, is sitting by