
    Laidig, et al. v. John D. Bohr, Inc., et al., Appellants.
    Argued December 5, 1974.
    
      Christian S. Erb, Jr., with him Metzger, Wickersham, Knauss & Erb, for appellants; Richard C. Angino, with him Hurwitz, Klein, Benjamin & Angino, for appellees.
   Judgment affirmed.

Van der Voort, J., absent.  