Nos. 83-7717, 83-7813 and 83-7840. Argued and Submitted September 13, 1984. Decided October 31, 1984. As Modified on Denial of Rehearing and Rehearing En banc March 11, 1985. Stefan M. Mason, Mason Mason, Los Angeles, Cal., Sanford N. Nathan, Neyhart, Anderson, Nussbaum, Reilly Freitas, San Francisco, Cal., for petitioner. Susan Williams, Elliott Moore, NLRB, Washington, D.C., for respondent. Petition to Review a Decision of the United States National Labor Relations Board. Before MERRILL, ALARCON