| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | | 02/11/1960 |
| Antilles | Denunciation | 14/12/1965 | 14/12/1966 |
| AUSTRIA | Signature | 26/06/1936 | |
| AUSTRIA | Ratification | 17/05/1950 | 15/08/1950 |
| BELGIUM | Signature | 26/06/1936 | |
| BELGIUM | Reservation | 26/06/1936 | |
| BELGIUM | Ratification | 27/11/1937 | |
| BRAZIL | Signature | 26/06/1936 | |
| BRAZIL | Ratification | 02/07/1938 | |
| BULGARIA | Signature | 26/06/1936 | |
| CAMBODIA | Accession | 03/10/1951 | 01/01/1952 |
| CAMEROON | Accession | 15/01/1962 | 15/04/1962 |
| CANADA | Signature | 26/06/1936 | |
| CANADA | Ratification | 27/09/1938 | |
| CEYLON | Accession | 04/12/1957 | 04/03/1958 |
| CHILE | Accession | 21/11/1972 | 19/02/1973 |
| CHINA | Signature | 26/06/1936 | |
| CHINA | Reservation | 26/06/1936 | |
| CHINA | Ratification | 21/10/1937 | |
| COLOMBIA | Signature | 26/06/1936 | |
| COLOMBIA | Ratification | 11/04/1944 | |
| CUBA | Signature | 26/06/1936 | |
| CUBA | Ratification | 09/08/1967 | |
| CUBA | Reservation | 09/08/1967 | |
| CZECH REPUBLIC | Succession | 30/12/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 26/06/1936 | |
| DENMARK | Signature | 26/06/1936 | |
| DOMINICAN REPUBLIC | Accession | 09/06/1958 | |
| ECUADOR | Signature | 26/06/1936 | |
| EGYPT | Signature | 26/06/1936 | |
| EGYPT | Ratification | 29/01/1940 | |
| ESTONIA | Signature | 26/06/1936 | |
| ETHIOPIA | Accession | 09/09/1947 | 08/12/1947 |
| FIJI | Succession | 01/11/1971 | |
| FRANCE | Signature | 26/06/1936 | |
| FRANCE | Reservation | 26/06/1936 | |
| FRANCE | Ratification | 16/01/1940 | |
| GREECE | Signature | 26/06/1936 | |
| GREECE | Ratification | 16/02/1938 | |
| GUATEMALA | Accession | 02/08/1938 | |
| HAYTI | Accession | 30/11/1938 | |
| HONDURAS | Signature | 26/06/1936 | |
| HUNGARY | Signature | 26/06/1936 | |
| INDIA | Signature | 26/06/1936 | |
| INDIA | Reservation | 26/06/1936 | |
| INDIA | Ratification | 04/08/1937 | |
| INDONESIA | Accession | 03/04/1958 | |
| ISRAEL | Accession | 16/05/1952 | |
| ITALY | Accession | 03/04/1961 | |
| ITALY | Declaration | 03/04/1961 | |
| IVORY COAST | Accession | 20/12/1961 | 20/03/1962 |
| JAPAN | Signature | 26/06/1936 | |
| JAPAN | Ratification | 07/09/1955 | 06/12/1955 |
| JORDAN | Accession | 07/05/1958 | |
| LAOS | Accession | 13/07/1951 | 11/10/1951 |
| LIECHTENSTEIN | Accession | 24/05/1961 | |
| LUXEMBOURG | Accession | 28/06/1955 | 26/09/1955 |
| MADAGASCAR | Accession | 11/12/1974 | 11/03/1975 |
| MALAWI | Accession | 08/06/1965 | |
| MEXICO | Signature | 26/06/1936 | |
| MEXICO | Ratification | 06/05/1955 | 04/08/1955 |
| MEXICO | Statement | 06/05/1955 | |
| MONACO | Signature | 26/06/1936 | |
| NETHERLANDS THE | Signature | 26/06/1936 | |
| NETHERLANDS THE | Reservation | 19/03/1959 | |
| NETHERLANDS THE | Ratification | 19/03/1959 | |
| NETHERLANDS THE | Denunciation | 14/12/1965 | 14/12/1966 |
| New Guinea | Extension | 19/03/1959 | |
| PANAMA | Signature | 26/06/1936 | |
| POLAND | Signature | 26/06/1936 | |
| PORTUGAL | Signature | 26/06/1936 | |
| ROUMANIA | Signature | 26/06/1936 | |
| ROUMANIA | Ratification | 28/06/1938 | |
| RWANDA | Accession | 15/07/1981 | 13/10/1981 |
| SOVIET UNION | Signature | 26/06/1936 | |
| SPAIN | Signature | 26/06/1936 | |
| SPAIN | Ratification | 05/06/1970 | 03/09/1970 |
| Surinam | Extension | 19/03/1959 | |
| Surinam | Denunciation | 14/12/1965 | 14/12/1966 |
| SWITZERLAND | Signature | 26/06/1936 | |
| SWITZERLAND | Ratification | 31/12/1952 | |
| TURKEY | Accession | 28/07/1939 | |
| UNITED KINGDOM | Signature | 26/06/1936 | |
| URUGUAY | Signature | 26/06/1936 | |
| VENEZUELA | Signature | 26/06/1936 | |