Prior user rights : strengthening U.S. manufacturing and innovation : hearing before the Subcommittee on Intellectual Property, Competition, and the Internet of the Committee on the Judiciary, House of Representatives, One Hundred Twelfth Congress, second session, February 1, 2012.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.