Tracey v. M. S. Coal Co., Inc. ( 1949 )
Valent v. Berwind-White Coal Mining Co. ( 1953 )
Masouskie v. Hammond Coal Co. ( 1953 )
Sierzega v. United States Steel Corp. ( 1964 )
Coma v. Hudson Coal Co. ( 1950 )
State Ex Rel. Utilities Commission v. Duke Power Co. ( 1982 )