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9. Protocol amending the convention on international civil aviation* Signed at Montreal 27 May 1947 ; effective on ratification by twentyeight members of the International Civil Aviation Organization. Signed by New Zealand 27 May 1947 and ratified 22 September 1947. See also convention on International Civil Aviation of 7 December 1944. U.K. Misc. No. 11 (1947) (Cmd. 7202). 10. Protocol to the accord of 27 July 1946 on German patents.* Signed at London 30 July 1947 ; effective 30 July 1947. Signed by New Zealand 30 July 1947 ; ratification not required. N.Z.T.S. No. 4 (1947). 11. Agreement for the formation of British Commonwealth Pacific Airlines Limited * Signed at Canberra 4 August 1947 ; effective 4 August 1947. Signed by New Zealand 4 August 1947 ; ratification not required. N.Z.T.S. No. 8 (1948). 12. Trusteeship agreement for the territory of Nauru* Approved by the General Assembly of the United Nations on 1 November 1947 ; effective 1 November 1947 ; ratification not required. U.K.T.S. No. 89 (1947) (Cmd. 7290).