| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 01/08/1930 | |
| BELGIUM | Ratification | 25/05/1932 | |
| BULGARIA | Withdrawal | 01/08/1930 | |
| CZECHOSLOVAKIA | Accession | 18/04/1934 | 01/02/1935 |
| DENMARK | Signature | 01/08/1930 | |
| DENMARK | Ratification | 25/11/1931 | |
| FRANCE | Signature | 01/08/1930 | |
| FRANCE | Ratification | 25/11/1931 | 01/04/1932 |
| GERMANY | Accession | 05/04/1934 | |
| GERMANY | Reservation | 05/04/1934 | |
| GREECE | Signature | 01/08/1930 | |
| GREECE | Ratification | 21/01/1933 | |
| ITALY | Signature | 01/08/1930 | |
| ITALY | Ratification | 25/11/1931 | 01/04/1932 |
| JAPAN | Signature | 01/08/1930 | |
| MEXICO | Signature | 01/08/1930 | |
| MEXICO | Ratification | 21/01/1932 | |
| MONACO | Signature | 01/08/1930 | |
| MONACO | Ratification | 25/11/1931 | 01/04/1932 |
| Morocco | Signature | 01/08/1930 | |
| SOVIET UNION | Signature | 01/08/1930 | |
| SOVIET UNION | Ratification | 25/11/1931 | 01/04/1932 |
| TUNIS | Signature | 01/08/1930 | |
| TUNIS | Ratification | 25/11/1931 | 01/04/1932 |
| TURKEY | Signature | 01/08/1930 | |
| UNITED KINGDOM | Signature | 01/08/1930 | |
| URUGUAY | Signature | 01/08/1930 | |
| URUGUAY | Withdrawal | 28/07/1978 | 28/07/1979 |
| YUGOSLAVIA | Signature | 01/08/1930 | |
| YUGOSLAVIA | Ratification | 25/11/1931 | |