Appalachian Coals, Inc. v. United States , 53 S. Ct. 471 ( 1933 )
United States Ex Rel. McLennan v. Wilbur , 51 S. Ct. 502 ( 1931 )
Carter v. Carter Coal Co. , 56 S. Ct. 855 ( 1936 )
Sunshine Anthracite Coal Co. v. Adkins , 60 S. Ct. 907 ( 1940 )