McKelvy v. Wilkinsburg Domestic Coal Co. , 283 Pa. 227 ( 1925 )
Hummel v. McFadden , 395 Pa. 543 ( 1959 )
Camp Chicopee v. Eden , 303 Pa. 150 ( 1931 )
Pope v. McMichael , 165 Pa. Super. 264 ( 1949 )