1. Copyright. General revision of copyright law, hearings, 71st Congress, 2d session, on H. R. 6990, to amend and consolidate acts respecting copyright, and to permit United States to enter International Copyright Union, Apr. 3-11, 1930. Bookmark Corporate/Agency Authors: Patents Committee, House, House of Representatives, and Congress Publisher: Patents Committee, House Date: 1930 SuDoc number: Y 4.P 27/1:C 79/18