Williams v. F.L. Smithe MacHine Co. , 395 Pa. Super. 511 ( 1990 )
Rothman v. Fillette , 503 Pa. 259 ( 1983 )
Lamp v. Heyman , 469 Pa. 465 ( 1976 )
Ferrari v. Antonacci , 456 Pa. Super. 54 ( 1997 )