“ The delegations of authority in this order shall not affect the authority of any agency or official pursuant to any other delegation of Presidential authority, presently in effect or hereafter made, under section 5 (b) of the act of October 6, 1917, as amended. Those regulations issued under the Export Control Act of 1949, as amended, to implement foreign policy set forth in Executive Orders Nos. 11322 of January 5, 1967 and 11419 of July, 29, 1968, shall until amended or revoked by the Secretary of Commerce continue to apply as regulations issued under such orders. ”