CountryActionAction DateEffective Date
AUSTRIASignature09/12/1957
BELGIUMSignature09/12/1957
BELGIUMObservation09/12/1957
DENMARKSignature09/12/1957
FINLANDSignature09/12/1957
GERMANY FEDERAL REPUBLICSignature09/12/1957
ITALYSignature09/12/1957
LUXEMBOURGSignature09/12/1957
LUXEMBOURGObservation09/12/1957
NETHERLANDS THESignature09/12/1957
NETHERLANDS THEObservation09/12/1957
NORWAYSignature09/12/1957
PORTUGALSignature01/01/1905
SWEDENSignature09/12/1957
SWITZERLANDSignature09/12/1957
UNITED KINGDOMSignature09/12/1957