No. 74-1860. May 5, 1975. Stewart J. Katz, Keller, Thoma, Toppin Schwarze, Detroit, Mich., for petitioner. John S. Irving, Patrick Hardin, Elliott Moore, Peter G. Nash, Deputy Gen. Counsel, National Labor Relations Board, Peter J. Carre, Washington, D.C., Leonard Page, International Union, UAW, Detroit, Mich., for respondent. Petition for review from the National Labor Relations Board. Before WEICK, McCREE and ENGEL, Circuit Judges. McCREE, Circuit Judge. This petition by Argus Optics, a Division