UNITED BISCUIT CO. OF AM. v. Voss Truck Lines, Inc. ( 1950 )
Winn v. Vogel ( 1952 )
Martin-Trigona v. Roderick ( 1975 )
Blakey v. Commonwealth Edison Co. ( 1977 )
Stambaugh v. International Harvester Co. ( 1984 )
Baltimore & Ohio Railroad v. Mosele ( 1977 )