"United States," . . "Stock exchanges Law and legislation." . . . . . . "Statutes and codes"@en . . . . . . "An Act to Provide for the Regulation of Securities Exchanges and of Over-the-Counter Markets Operating in Interstate and Foreign Commerce and through the Mails. to Prevent Inequitable and Unfair Practices on Such Exchanges and Markets, and for Other Purposes"@en . "Securities." . . "United States." . . "Securities United States." . . . . "Stock exchanges Law and legislation United States." . .