
    Lawrence C. Knaefler, Inc. v. Bischoff, et ux., Appellants.
    Argued June 16, 1975.
    
      Bruce K. Doman, with him Mark B. Weber, and Weber and Abarbanel, for appellants; Robert A. Lecho-wicz, with him John J. Rufe, for appellee.
   Judgment affirmed.  