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| Belgium (February 10th, 1923) This ratification does not apply to the Belgian Congo. |
| Brazil (November 21st, 1932 a) |
| Great Britain and Northern Ireland (October 23rd, 1930 s) Does not include any Colonies, Protectorates or Territories under suzerainty or mandate of His Britannic Majesty. Burma 2 |
| India (October 23rd, 1930 s) Does not include any of the Indian States under British suzerainty. |
| China (May 29th, 1935) |
| Free City of Danzig (through the intermediary of Poland) (October 2nd, 1933) |
| Denmark (April 29th, 1931 s) |
| Estonia (September 16th, 1936) |
| Finland (May 23rd, 1934) |
| France (October 23rd, 1930 s) Morocco(October 23rd, 1930 s) Tunis (October 23rd, 1930 s) French Colonies and Mandated Territories as follows: Cameroons (October 28th, 1933 a) French Coast of Somaliland (October 28th, 1933 a) French Equatorial Africa (October 28th, 1933 a) French Settlements in India (October 28th, 1933 a) French West Africa(October 28th, 1933 a) Guadeloupe, Guiana (October 28th, 1933 a) Indo-China(October 28th, 1933 a) Madagascar, Martinique (October 28th, 1933 a) New Caledonia (October 28th, 1933 a) Oceania (October 28th, 1933 a) Reunion (October 28th, 1933 a) St. Pierre and Miquelon (October 28th, 1933 a) Togoland (October 28th, 1933 a) |
| Greece (October 23rd, 1930 s) |
| Iraq (October 15th, 1935 a) |
| Latvia (September 17th, 1935 a) |
| Monaco (October 23rd, 1930 s) |
| The Netherlands 3 (October 23rd, 1930 s) (Including the Netherlands Indies.) |
| Poland (October 2nd, 1933) |
| Portugal (October 23rd, 1930 s) |
| Romania (June 1st, 1931 s) |
| Spain (November 3rd, 1933) |
| Sweden (February 3rd, 1933) |
| Union of Soviet Socialist Republics (April 27th, 1931 s) |
| Turkey (June 27th, 1936 a) |
| Yugoslavia (former) 4 (January 16th, 1934) |