No. 24723. March 11, 1970. Ronald Greenberg (argued), Atty., Marcel Mallet-Prevost, Asst. Gen. Counsel, N.L.R.B., Washington, D.C., Ralph E. Kennedy, Director, N.L.R.B., Los Angeles, Cal., for petitioner. Wilson Clark (argued), of Brundage Hackler, Los Angeles, Cal., for respondent. Before BARNES and CARTER, Circuit Judges, and BYRNE, District Judge. Hon. William M. Byrne, Senior Judge, United States District Court, Central District of California, sitting by designation. PER CURIAM. Petitioner, the