No. 72-1835. June 15, 1973. Richard L. Lotts (argued), of Sheppard, Mullin, Richter Hampton, Los Angeles, Cal., for petitioner. William Wachter (argued), Peter G. Nash, Gen. Counsel, Patrick Hardin, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Douglas S. McDowell, NLRB, Washington, D.C.; Wilford Johanson, Director, Region 21, Douglas Olins, Region 21, NLRB, Los Angeles, Cal., for respondent. Petition for review from the National Labor Relations Board. Before BROWNING and GOODWIN