| Party | Signature | Provisional application | RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known | Entry into force | Renunciation | Termination |
|---|---|---|---|---|---|---|
| Argentina | 19-04-1961 (A) | 19-10-1961 | ||||
| Belgium | 10-04-1926 | 08-01-1936 (R) | 08-01-1937 | |||
| Brazil | 10-04-1926 | 08-01-1936 (R) | 08-01-1937 | |||
| Chile | 10-04-1926 | 08-01-1936 (R) | 08-01-1937 | |||
| Cyprus | 19-07-1988 (A) | 19-01-1989 | ||||
| Democratic Republic of the Congo | 17-07-1967 (A) | 17-01-1968 | ||||
| Denmark | 10-04-1926 | 16-11-1950 (R) | 16-05-1951 | |||
| Egypt | 17-02-1960 (A) | 17-08-1960 | ||||
| Estonia | 10-04-1926 | 08-01-1936 (R) | 08-01-1937 | |||
| France | 10-04-1926 | 27-07-1955 (R) | 27-01-1956 | |||
| Germany | 10-04-1926 | 27-06-1936 (R) | 08-01-1937 | |||
| Greece | 19-05-1951 (A) | 19-11-1951 | ||||
| Hungary | 10-04-1926 | 08-01-1936 (R) | 08-01-1937 | |||
| Italy | 10-04-1926 | 27-01-1937 (R) | 27-07-1937 | |||
| Libya | 27-01-1937 (R) | 27-07-1937 | ||||
| Luxembourg | 18-02-1991 (A) | 18-08-1991 | ||||
| Madagascar | 27-07-1955 (R) | 27-01-1956 | ||||
| Mexico | 10-04-1926 | |||||
| Netherlands, the Kingdom of the | 10-04-1926 | 08-07-1936 (R) | 08-01-1937 | |||
| Norway | 10-04-1926 | 25-04-1939 (R) | 25-10-1939 | |||
| Poland | 10-04-1926 | 16-07-1976 (R) | 16-01-1977 | |||
| Portugal | 10-04-1926 | 27-06-1938 (R) | 27-12-1938 | |||
| Romania | 10-04-1926 | 04-08-1937 (R) | 04-02-1938 | 21-09-1960 | ||
| Somalia | 27-01-1937 (R) | 27-07-1937 | ||||
| Spain | 10-04-1926 | |||||
| Suriname | 08-07-1936 (R) | 08-01-1937 | ||||
| Sweden | 10-04-1926 | 01-07-1938 (R) | 01-01-1939 | |||
| Switzerland | 28-05-1954 (A) | 28-11-1954 | ||||
| Syria | 17-02-1960 (A) | 17-08-1960 | ||||
| Türkiye | 04-07-1955 (A) | 04-01-1956 | ||||
| United Kingdom | 10-04-1926 | 03-07-1979 (R) | 03-01-1980 | |||
| Uruguay | 15-09-1970 (A) | 15-03-1971 |
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