Section, acts Mar. 4, 1915, ch. 147, Sec. 5, 38 Stat. 1161; May 29, 1928, ch. 901, Sec. 1(5), 45 Stat. 986, related to exchange of typewriters and adding machines in part payment for new machines. See section 481 of Title 40, Public Buildings, Property, and Works

Repeal effective July 1, 1949, see section 605 of act June 30, 1949