LE Pinkham Med. Co. v. Com'r of Internal Revenue , 128 F.2d 986 ( 1942 )
Mayson Mfg. Co. v. Commissioner of Internal Revenue , 178 F.2d 115 ( 1949 )
Botany Worsted Mills v. United States , 49 S. Ct. 129 ( 1929 )
Hammond Lead Products, Inc. v. Commissioner of Internal Revenue , 425 F.2d 31 ( 1970 )
Roth Office Equipment Co. v. Gallagher , 172 F.2d 452 ( 1949 )