Country	Action	Action Date	Effective Date
AUSTRIA	Signature	14/07/1961
AUSTRIA	Ratification	14/06/1962	14/07/1962
Hong Kong	Extension	21/11/1977	21/02/1978
UNITED KINGDOM	Signature	14/07/1961
UNITED KINGDOM	Ratification	14/06/1962	14/07/1962