| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA | Signature | 29/05/1933 | |
| BELGIUM | Signature | 14/10/1936 | |
| BRAZIL | Signature | 29/05/1933 | |
| BRAZIL | Ratification | 13/11/1941 | |
| CZECHOSLOVAKIA | Signature | 29/05/1933 | |
| DENMARK | Signature | 29/05/1933 | |
| FRANCE | Signature | 29/05/1933 | |
| GERMANY | Signature | 29/05/1933 | |
| GUATEMALA | Signature | 29/05/1933 | |
| GUATEMALA | Ratification | 06/07/1939 | |
| HONDURAS | Signature | 12/10/1933 | |
| HUNGARY | Signature | 18/12/1933 | |
| India | Signature | 29/05/1933 | |
| ITALY | Signature | 29/05/1933 | |
| JAPAN | Signature | 25/08/1933 | |
| LITHUANIA | Signature | 29/05/1933 | |
| Morocco | Extension | 28/06/1934 | |
| NETHERLANDS THE | Signature | 30/12/1933 | |
| NORWAY | Signature | 29/05/1933 | |
| POLAND | Signature | 29/05/1933 | |
| ROUMANIA | Signature | 29/05/1933 | |
| ROUMANIA | Ratification | 23/03/1935 | |
| SALVADOR | Signature | 29/05/1933 | |
| SAN MARINO | Signature | 29/05/1933 | |
| SPAIN | Signature | 29/05/1933 | |
| SPAIN | Ratification | 28/06/1934 | |
| SPAIN | Declaration | 28/06/1934 | |
| SWITZERLAND | Signature | 29/05/1933 | |
| TURKEY | Signature | 08/06/1933 | |
| UNITED KINGDOM | Signature | 29/05/1933 | |
| UNITED STATES OF AMERICA | Signature | 29/05/1933 | |
| UNITED STATES OF AMERICA | Declaration | 29/05/1933 | |
| VATICAN CITY | Signature | 16/11/1933 | |
| YUGOSLAVIA | Signature | 09/08/1933 | |