No. 77-4015. October 12, 1978. Edward S. Dorsey (argued), Elliott Moore, Washington, D.C., for petitioner. Gerald W. Alston (argued), Alston, Edwards, Scott Novak, Phoenix, Ariz, for respondent. On Petition to Review a Decision of the National Labor Relations Board. Before MERRILL and CHOY, Circuit Judges, and TANNER, District Judge. Honorable Jack E. Tanner, United States District Judge of the Western District of Washington, sitting by designation. MERRILL, Circuit Judge: The National Labor Relations