Martin Eichner, Romines & Eichner, Palo Alto, Cal., for plaintiffs-appellants.
Alan C. Davis, Davis, Cowell & Bowe, San Francisco, Cal., for defendants-appellees.
Before TUTTLE,* ELY, and WRIGHT, Circuit Judges.
PER CURIAM:
¶1
The District Court's judgment is affirmed, essentially upon the basis of the carefully written opinion of District Judge Renfrew, reported at 469 F.Supp. 14 (N.D.Cal.1977).
*
Honorable Elbert P. Tuttle, Senior United States Circuit Judge for the Fifth Circuit, sitting by designation