Compulsory licensing of patents : legislative history : study of the Subcommittee on Patents, Trademarks, and Copyrights of the Committee on the Judiciary, United States Senate, Eighty-fifth Congress, second session, pursuant to S. Res. 236. (Study (United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Patents, Trademarks, and Copyrights) ;, 1958)