| Party | Signature | Provisional application |
RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known | Entry into force | Renunciation | Termination |
|---|---|---|---|---|---|---|
| Germany | 28-11-1923 | 08-12-1924 (R) | 05-06-1926 | 23-08-1992 | ||
| Hungary | 28-11-1923 | 11-05-1925 (R) | 05-06-1926 | 23-08-1977 | ||
| Italy | 28-11-1923 | 04-12-1924 (R) | 05-06-1926 | |||
| Netherlands, the Kingdom of the | 28-11-1923 | 12-03-1925 (R) | 05-06-1926 | 23-08-1977 | ||
| Portugal | 28-11-1923 | 06-05-1926 (R) | 05-06-1926 | |||
| Romania | 28-11-1923 | 03-12-1924 (R) | 05-06-1926 |