
    No. 91-904.
    Concrete Pipe & Products of California, Inc. v. Construction Laborers Pension Trust for Southern California.
   C. A. 9th Cir. [Certiorari granted, 504 U. S. 940.] Motion of Pension Benefit Guaranty Corporation for leave to participate in oral argument as amicus curiae and for divided argument granted. Motions of National Coordinating Committee for Multiemployer Plans and Central States, Southeast and Southwest Areas Pension Fund for leave to file briefs as amici curiae granted.  