| Country | Action | Action Date | Effective Date |
|---|
| BRAZIL | Signature | 02/06/1934 | |
| CUBA | Signature | 02/06/1934 | |
| CZECHOSLOVAKIA | Signature | 02/06/1934 | |
| EGYPT | Accession | 01/07/1952 | |
| FRANCE | Accession | 25/06/1939 | 25/06/1939 |
| GERMANY | Signature | 02/06/1934 | |
| GERMANY | Ratification | 10/08/1937 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 09/11/1949 | |
| HUNGARY | Accession | 14/07/1962 | 14/07/1962 |
| IRELAND, REPUBLIC OF | Accession | 14/05/1958 | 14/05/1958 |
| ISRAEL | Accession | 24/03/1950 | |
| ITALY | Accession | 05/03/1951 | |
| JAPAN | Accession | 08/06/1953 | 08/07/1953 |
| LEBANON | Signature | 02/06/1934 | |
| LEBANON | Ratification | 19/02/1946 | 30/09/1947 |
| LIECHTENSTEIN | Signature | 02/06/1934 | |
| LIECHTENSTEIN | Accession | 28/01/1951 | |
| MONACO | Accession | 29/03/1956 | |
| Morocco | Extension | 21/01/1941 | |
| NEW ZEALAND | Accession | 17/05/1947 | |
| POLAND | Signature | 02/06/1934 | |
| PORTUGAL | Accession | 07/10/1949 | 07/11/1949 |
| SAN MARINO | Accession | 25/09/1960 | 25/09/1960 |
| SPAIN | Accession | 02/02/1956 | |
| SRI LANKA | Accession | 29/12/1952 | 29/12/1952 |
| SWEDEN | Accession | 21/04/1953 | 01/07/1953 |
| SWITZERLAND | Accession | 24/11/1939 | |
| SYRIA & GRAND LEBANON | Accession | 30/09/1947 | |
| TANGIER | Accession | 13/06/1939 | |
| TUNIS | Accession | 04/10/1942 | |
| TURKEY | Accession | 04/04/1957 | |
| UNITED KINGDOM | Signature | 02/06/1934 | |
| UNITED KINGDOM | Ratification | 30/06/1938 | |
| UNITED KINGDOM | Declaration | 09/11/1949 | |
| Western Samoa | Extension | 17/05/1947 | |