
    Lehigh Valley Supply Co. v. Keystone Plumbing, Heating and Air Conditioning (et al., Appellant).
    Argued September 10, 1969.
    
      Franklin E. Poore, III, with him McGavin, DeSantis & Koch, for appellant;
    
      Alan M. Black, with him Efron and Black, for appellee.
   Judgment affirmed.  