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(a) The demand shall indicate at least one Contracting State, from among those States which are designated and are bound by Chapter II of the Treaty ("eligible States"), as an elected State.
(b) Election of Contracting States in the demand shall be made:
(i) by an indication that all eligible States are elected, or,
(ii) in the case of States which have been designated for the purpose of obtaining national patents, by an indication of those eligible States that are elected, and, in the case of States which have been designated for the purpose of obtaining a regional patent, by an indication of the regional patent concerned together with either an indication that all eligible States party to the regional patent treaty concerned are elected or an indication of those among the said States that are elected.
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