No. 80-7332. Argued and Submitted December 15, 1981. Decided February 25, 1982. Margery Lieber, Atty., N.L.R.B., Washington, D.C., argued, for petitioner; Robert G. Servell, Washington, D.C., on brief. Matthew D. Ross, Brundage, Davis, Frommer Jesinger, and Robert M. Cassel, Specter, Berman, Cassel Carter, San Francisco, Cal., argued, for respondents; Charles Klinedinst, Petit Martin, San Francisco, Cal., on brief. Application for Enforcement of an Order of the National Labor Relations Board. Before