| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ARGENTINA | Accession | 05/09/1945 | 05/09/1945 |
| Australia | Signature | 27/07/1929 | |
| Australia | Declaration | 27/07/1929 | |
| Australia | Ratification | 23/06/1931 | |
| AUSTRIA | Signature | 27/07/1929 | |
| AUSTRIA | Ratification | 13/03/1936 | |
| BELGIUM | Signature | 27/07/1929 | |
| BELGIUM | Ratification | 12/05/1932 | |
| BOLIVIA | Signature | 27/07/1929 | |
| BOLIVIA | Ratification | 13/08/1940 | |
| BRAZIL | Signature | 27/07/1929 | |
| BRAZIL | Ratification | 23/03/1932 | |
| BULGARIA | Signature | 27/07/1929 | |
| BULGARIA | Ratification | 13/10/1937 | |
| Canada | Signature | 27/07/1929 | |
| Canada | Declaration | 27/07/1929 | |
| Canada | Ratification | 20/02/1933 | |
| CHILE | Signature | 27/07/1929 | |
| CHILE | Ratification | 01/06/1933 | |
| CHINA | Signature | 27/07/1929 | |
| CHINA | Ratification | 19/11/1935 | |
| COLOMBIA | Signature | 27/07/1929 | |
| CUBA | Signature | 27/07/1929 | |
| CZECHOSLOVAKIA | Signature | 27/07/1929 | |
| CZECHOSLOVAKIA | Ratification | 12/10/1937 | |
| DENMARK | Signature | 27/07/1929 | |
| DENMARK | Ratification | 05/08/1932 | |
| DOMINICA, COMMONWEALTH OF | Signature | 27/07/1929 | |
| EGYPT | Signature | 27/07/1929 | |
| EGYPT | Ratification | 25/07/1933 | |
| ESTONIA | Signature | 27/07/1929 | |
| ESTONIA | Ratification | 11/06/1936 | |
| ESTONIA | Declaration | 26/11/1991 | |
| ETHIOPIA | Accession | 15/07/1935 | |
| FIJI | Succession | 09/08/1971 | 10/10/1970 |
| FINLAND | Signature | 27/07/1929 | |
| FINLAND | Ratification | 08/02/1936 | |
| FRANCE | Signature | 27/07/1929 | |
| FRANCE | Ratification | 21/08/1935 | |
| GERMANY | Signature | 27/07/1929 | |
| GERMANY | Ratification | 21/02/1934 | |
| GREECE | Signature | 27/07/1929 | |
| GREECE | Ratification | 28/05/1935 | |
| HUNGARY | Signature | 27/07/1929 | |
| HUNGARY | Ratification | 10/09/1936 | |
| India | Signature | 27/07/1929 | |
| India | Declaration | 27/07/1929 | |
| India | Ratification | 23/06/1931 | |
| INDONESIA | Accession | 05/06/1950 | |
| IRAQ | Accession | 25/05/1934 | |
| Irish Free State | Signature | 27/07/1929 | |
| Irish Free State | Declaration | 27/07/1929 | |
| ISRAEL | Accession | 03/08/1948 | |
| ITALY | Signature | 27/07/1929 | |
| ITALY | Ratification | 24/03/1931 | |
| JAPAN | Signature | 27/07/1929 | |
| JAPAN | Reservation | 27/07/1929 | |
| JAPAN | Ratification | 18/12/1934 | |
| JORDAN | Withdrawal | 01/01/1905 | |
| JORDAN | Accession | 20/11/1948 | |
| LATVIA | Signature | 27/07/1929 | |
| LATVIA | Ratification | 14/10/1931 | |
| LATVIA | Declaration | 26/11/1991 | |
| LEBANON | Accession | 11/06/1946 | 12/12/1946 |
| LIECHTENSTEIN | Accession | 10/01/1944 | 11/07/1944 |
| LITHUANIA | Accession | 27/02/1939 | |
| LITHUANIA | Declaration | 20/12/1991 | |
| LUXEMBOURG | Signature | 27/07/1929 | |
| MEXICO | Signature | 27/07/1929 | |
| MEXICO | Ratification | 01/08/1932 | |
| MONACO | Accession | 06/07/1948 | 06/07/1948 |
| NETHERLANDS THE | Signature | 27/07/1929 | |
| NETHERLANDS THE | Ratification | 05/10/1932 | |
| New Zealand | Signature | 27/07/1929 | |
| New Zealand | Declaration | 27/07/1929 | |
| New Zealand | Ratification | 23/06/1931 | |
| NICARAGUA | Signature | 27/07/1929 | |
| NORWAY | Signature | 27/07/1929 | |
| NORWAY | Ratification | 24/06/1931 | |
| PAKISTAN | Succession | 06/08/1948 | |
| PAPUA NEW GUINEA | Succession | 26/05/1976 | 16/09/1975 |
| PERSIA | Signature | 27/07/1929 | |
| PERU | Accession | 10/03/1933 | |
| PHILIPPINES | Accession | 01/10/1947 | |
| POLAND | Signature | 27/07/1929 | |
| POLAND | Ratification | 29/06/1932 | |
| PORTUGAL | Signature | 27/07/1929 | |
| PORTUGAL | Ratification | 08/06/1931 | |
| ROUMANIA | Signature | 27/07/1929 | |
| ROUMANIA | Ratification | 24/10/1931 | |
| SALVADOR | Accession | 22/04/1942 | |
| SAN MARINO | Accession | 12/10/1950 | 12/04/1951 |
| SIAM | Signature | 27/07/1929 | |
| SIAM | Ratification | 03/06/1939 | |
| South Africa | Signature | 27/07/1929 | |
| South Africa | Ratification | 23/06/1931 | |
| SOVIET UNION | Accession | 26/09/1931 | |
| SPAIN | Signature | 27/07/1929 | |
| SPAIN | Ratification | 06/08/1930 | |
| SWEDEN | Signature | 27/07/1929 | |
| SWEDEN | Ratification | 03/07/1931 | |
| SWITZERLAND | Signature | 27/07/1929 | |
| SWITZERLAND | Ratification | 19/12/1930 | |
| SYRIA | Accession | 20/06/1946 | 04/01/1947 |
| TURKEY | Signature | 27/07/1929 | |
| TURKEY | Ratification | 10/03/1934 | |
| UNITED KINGDOM | Signature | 27/07/1929 | |
| UNITED KINGDOM | Declaration | 27/07/1929 | |
| UNITED KINGDOM | Ratification | 23/06/1931 | |
| UNITED STATES OF AMERICA | Signature | 27/07/1929 | |
| UNITED STATES OF AMERICA | Ratification | 04/02/1932 | |
| URUGUAY | Signature | 27/07/1929 | |
| VENEZUELA | Signature | 27/07/1929 | |
| VENEZUELA | Ratification | 15/07/1944 | 15/01/1945 |
| YUGOSLAVIA | Signature | 27/07/1929 | |
| YUGOSLAVIA | Ratification | 20/05/1931 |