| 11. | Article 46 of the Convention provides that contracting states undertake to abide by the Court's final decision.
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| 12. | CPT delegations visit Contracting States periodically but may organise additional " ad hoc " visits if necessary.
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| 13. | They ensure the automatic mutual recognition of official decisions taken by one Contracting State in other Contracting States.
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| 14. | Each Contracting State may notify the ICAO Council of differences between SARPs and its own regulations and practices.
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| 15. | However, a national court in one Contracting State may not revoke a European patent in another Contracting State.
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| 16. | The foregoing facts do not reflect a Europe-wide failure by the Contracting States to properly implement the Directive.
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| 17. | However, a national court in one Contracting State may not revoke a European patent in another Contracting State.
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| 18. | They ensure the automatic mutual recognition of official decisions taken by one Contracting State in other Contracting States.
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| 19. | Those questions are to be answered by the domestic law selected by the courts of the contracting states.
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| 20. | The " election " of a contracting state correspondingly means electing it when demanding ( requesting ) the examination.
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