If any part of this title or the application thereof to any person or circumstances shall be adjudged to be invalid by a court of competent jurisdiction, such order or judgment shall be confined in its applicability to the controversy in which it was rendered, and not affect or invalidate the remainder of any provision of any section or subdivision hereof or the application of any part of the act so interpreted, or otherwise, to any other person or circumstance, and to this end the provisions of each section of the act, and of subdivisions and parts thereof, are hereby declared to be separable.