Royalties. Making unlawful exaction of tribute or royalties from production of articles in commerce by coercion, intimidation, or threat, hearings before subcommittee no. 2, 79th Congress, 2d session, on H. R. 6230, to amend criminal code by making unlawful exaction of tribute or royalties from production of articles in commerce, and to prohibit coercive practices affecting such production, and H. R. 6259, to amend criminal code so as to make unlawful certain harmful and disruptive practices in commerce, May 6 and 7, 1946.