If any provision of this subchapter or the application of such provision to any person or circumstance shall be held invalid, the remainder of the subchapter and the application of such provision to persons or circumstances other than those as to which it is held invalid shall not be affected thereby.
(May 27, 1933, ch. 38, title III, § 328, as added Aug. 3, 1939, ch. 411, 53 Stat. 1177.)