National Cash Register Co. v. United States , 400 F.2d 820 ( 1968 )
Welch v. St. Helens Petroleum Co. , 78 F.2d 631 ( 1935 )
Wisconsin Gas & Electric Co. v. United States , 64 S. Ct. 1106 ( 1944 )
Biddle v. Commissioner , 58 S. Ct. 379 ( 1938 )
American Chicle Co. v. United States , 62 S. Ct. 1144 ( 1942 )