Pub. L. 87–126, § 10, Aug. 7, 1961, 75 Stat. 293, provided that: “If any provision of this Act [sections 459b to 459b–8 of this title] or the application of such provision to any person or circumstance is held invalid, the remainder of this Act [such sections] or the application of such provision to persons or circumstances other than those to which it is held invalid shall not be affected thereby.”