| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 06/02/1976 | |
| ARGENTINE REPUBLIC | Signature | 14/03/1884 | |
| ARGENTINE REPUBLIC | Ratification | 08/05/1885 | |
| ARGENTINE REPUBLIC | Re-Application | 01/05/1952 | |
| AUSTRALIA | Re-Application | 01/07/1954 | |
| AUSTRIA | Succession | 01/08/1921 | |
| AUSTRIA | Re-Application | 01/05/1952 | |
| AUSTRIA-HUNGARY | Signature | 14/03/1884 | |
| AUSTRIA-HUNGARY | Ratification | 16/04/1885 | |
| BELGIUM | Signature | 14/03/1884 | |
| BELGIUM | Reservation | 14/03/1884 | |
| BELGIUM | Ratification | 16/04/1885 | |
| BELGIUM | Re-Application | 01/05/1952 | |
| BRAZIL | Signature | 14/03/1884 | |
| BRAZIL | Ratification | 16/04/1885 | |
| BRAZIL | Re-Application | 01/05/1952 | |
| COLOMBIA | Signature | 14/03/1884 | |
| COSTA RICA | Signature | 14/03/1884 | |
| COSTA RICA | Ratification | 11/12/1885 | |
| COSTA RICA | Re-Application | 01/05/1952 | |
| CZECHOSLOVAKIA | Accession | 29/01/1925 | |
| DANZIG | Accession | 31/03/1926 | |
| DENMARK | Re-Application | 01/10/1953 | |
| DENMARK | Signature | 14/03/1884 | |
| DENMARK | Ratification | 08/05/1885 | |
| DOMINICAN REPUBLIC | Signature | 14/03/1884 | |
| DOMINICAN REPUBLIC | Ratification | 16/04/1885 | |
| DOMINICAN REPUBLIC | Re-Application | 01/05/1952 | |
| EL SALVADOR | Re-Application | 01/05/1952 | |
| FIJI | Succession | 16/08/1971 | |
| FRANCE | Signature | 14/03/1884 | |
| FRANCE | Ratification | 16/04/1885 | |
| GERMAN DEMOCRATIC REPUBLIC | Re-Application | 31/01/1974 | 18/11/1952 |
| GERMANY | Signature | 14/03/1884 | |
| GERMANY | Ratification | 16/04/1885 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 01/01/1905 | |
| GERMANY FEDERAL REPUBLIC | Re-Application | 01/05/1952 | |
| GREECE | Signature | 14/03/1884 | |
| GREECE | Ratification | 01/01/1905 | |
| GREECE | Re-Application | 01/05/1952 | |
| GUATEMALA | Signature | 14/03/1884 | |
| GUATEMALA | Ratification | 16/04/1885 | |
| HUNGARY | Succession | 07/05/1922 | |
| ITALY | Signature | 14/03/1884 | |
| ITALY | Ratification | 01/01/1905 | |
| ITALY | Re-Application | 01/05/1952 | |
| JAPAN | Accession | 12/04/1884 | |
| LUXEMBOURG | Signature | 14/03/1884 | |
| LUXEMBOURG | Ratification | 16/04/1885 | |
| MALTA | Succession | 10/04/1968 | 21/09/1964 |
| MOROCCO | Accession | 03/11/1936 | |
| MOROCCO | Re-Application | 01/05/1952 | |
| NETHERLANDS THE | Signature | 14/03/1884 | |
| NETHERLANDS THE | Reservation | 14/03/1884 | |
| NETHERLANDS THE | Ratification | 16/04/1885 | |
| NORWAY | Re-Application | 01/05/1952 | |
| PERSIA | Signature | 14/03/1884 | |
| POLAND | Accession | 26/06/1934 | |
| PORTUGAL | Signature | 14/03/1884 | |
| PORTUGAL | Ratification | 16/04/1885 | |
| PORTUGAL | Communication | 16/12/1999 | |
| ROUMANIA | Signature | 14/03/1884 | |
| ROUMANIA | Ratification | 16/04/1885 | |
| RUSSIA | Signature | 14/03/1884 | |
| RUSSIA | Ratification | 16/04/1885 | |
| SALVADOR | Signature | 14/03/1884 | |
| SALVADOR | Ratification | 16/04/1885 | |
| SERBIA | Signature | 14/03/1884 | |
| SERBIA | Ratification | 16/04/1885 | |
| SOVIET UNION | Accession | 02/02/1924 | |
| SOVIET UNION | Communication | 14/05/1976 | |
| SPAIN | Signature | 14/03/1884 | |
| SPAIN | Ratification | 16/04/1885 | |
| SWEDEN AND NORWAY | Signature | 14/03/1884 | |
| SWEDEN AND NORWAY | Reservation | 14/03/1884 | |
| SWEDEN AND NORWAY | Ratification | 16/04/1885 | |
| TUNIS | Accession | 25/06/1889 | |
| TURKEY | Signature | 14/03/1884 | |
| TURKEY | Ratification | 16/04/1885 | |
| UNITED KINGDOM | Signature | 14/03/1884 | |
| UNITED KINGDOM | Reservation | 14/03/1884 | |
| UNITED KINGDOM | Ratification | 16/04/1885 | |
| UNITED KINGDOM | Notification | 19/09/1888 | |
| UNITED KINGDOM | Re-Application | 30/01/1953 | 01/01/1953 |
| UNITED STATES OF AMERICA | Signature | 14/03/1884 | |
| UNITED STATES OF AMERICA | Ratification | 16/04/1885 | |
| UNITED STATES OF AMERICA | Re-Application | 01/05/1952 | |
| URUGUAY | Signature | 14/03/1884 | |
| URUGUAY | Ratification | 16/04/1885 | |
| URUGUAY | Re-Application | 01/05/1952 | |
| YUGOSLAVIA | Re-Application | 01/05/1952 |