Hearings Before Subcommittee No.3 of the Committee on the Judiciary, House of Representatives, Eighty-second Congress, First Session, on H.R. 3760, a Bill to Revise and Codify the Laws Relating to Patents and the Patent Office, and to Enact Into Law Title 35 of the United States Code Entitled "Patents", June 13, 14, and 15, 1951