No. 25217. June 2, 1971. E. Judge Elderkin (argued), William R. Irwin, of Brobeck, Phleger Harrison, San Francisco, Cal., for appellant. Leonard M. Wagman (argued), for NLRB, Arnold Ordman, Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Washington, D.C., Roy O. Hoffman, Reg. Director, of NLRB; Gladstein, Anderson, Leonard Sibbett, Brundage, Neyhart, Grodin Beeson, San Francisco, Cal., for appellee. Before CHAMBERS and BARNES, Circuit Judges, and THOMPSON, District Judge. The Honorable Bruce