Fehr v. Campbell , 288 Pa. 549 ( 1927 )
Wenger v. Ziegler , 424 Pa. 268 ( 1967 )
Atlantic Richfield Co. v. Razumic , 480 Pa. 366 ( 1978 )
Witmer v. Exxon Corp. , 495 Pa. 540 ( 1981 )
Exxon Corp. v. Wilson , 260 Pa. Super. 560 ( 1978 )
Amoco Oil Co. v. Burns , 496 Pa. 336 ( 1981 )