...violation of the provisions of this Act, or of any rule, regulation, or order thereunder, it may in its discretion bring an action in the proper district court of the United States, the District Court of the United States for the District of Columbia, or the United States...

...violation of any provision of this title, or of any rule, regulation, or order hereunder, it may in its discretion bring an action in the proper district court of the United States, or the proper United States court of any Territory or other place subject to the jurisdiction of the United States, to enjoin...

...Commission finds and by order declares to be deceptive or misleading. The Commission is authorized to bring an action in the proper district court of the United States or United States court of any Territory or other place subject to the jurisdiction of the United States...

...act or practice, the Secretary or the commission, as the case may be, in his or its discretion, may bring an action in the proper district court of the United States or the proper United States court of any Territory or other place subject to the jurisdiction of the United States, to enjoin...

...lation ot the provisions ot this Act, or oi any rule, regulation, or order thereunder, it may in its discretion bring an action in the proper District Court of the United States, the Supreme Court of the District of Columbia,15 or the United States courts of any Territory...

...a violation of the provisions of this title, or of any rule or regulation thereunder, it may in its discretion bring an action in the proper district court of the United States, the Supreme Court of the District of Columbia, or the United States courts of any Territory...

...violation of the provisions of this chapter, or of any rule or regulation thereunder, it may in its discretion bring an action In the proper district court of the United States, the United States District Court for the District of Columbia, or the United States courts...

...performing the functions of such office after it has been declared to be vacant under subsection (b), he may in his discretion bring an action in the proper district court of the United States, or United States court of any Territory or other place subject to the jurisdiction of the United States,...

...amended to read as follows : "(b) Whenever it shall appear to the Commission that any person has engaged, is engaged, or is about to engage in any acts or practices constituting a violation of the provisions of this title, or of any rule or regulation prescribed under authority thereof, or that...

...amended to read as follows : "(b) Whenever it shall appear to the Commission that any person has engaged, is engaged, or is about to engage in any acts or practices constituting a violation of the provisions of this title, or of any rule or regulation prescribed under authority thereof, or that...