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This Convention shall be open for signature until 5 April 1974 by the States which took part in the Inter-Governmental Conference for the setting up of a European System for the Grant of Patents or were informed of the holding of that conference and offered the option of taking part therein.
Signatory States: AT, BE, CH, DE, DK, FR, GB, GR, IE, IT, LI, LU, MC, NL, NO, SE.
Conference participants: signatory states plus ES, FI, PT, TR, YU.
Invited states: Conference participants plus CY, IS.
Date retrieved: 02 November 2015