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Allied and Associated Powers than is accorded by such Power in like cases to other United Nations or their nationals, nor shall Bulgaria be thereby required to accord to any of the Allied and Associated Powers or its nationals more favourable treatment than Bulgaria or its nationals receive in the territory of such Power in regard to the matters dealt with in the foregoing provisions. 5. Third parties in the territories of any of the Allied and Associated Powers or Bulgaria who, before the coming into force of the present Treaty, had bona fide acquired industrial, literary or artistic property rights conflicting with rights restored under this Annex or with rights obtained with the priority provided thereunder, or had b.ona fide manufactured, published, reproduced, use or sold the subject matter of such rights, shall be permitted without any liability for infringement, to continue to exercise such rights and to continue or to resume such manufacture, publication, reproduction, use or sale which had been bona fide acquired or commenced. In Bulgaria, such permission shall take the form of a non-exclusive licence granted on terms and conditions to be mutually agreed by the parties thereto or, in default of agreement, to be fixed by the Conciliation Commission established under Article 31 of the present Treaty. In the territories of each of the Allied and Associated Powers, however, bona fide third parties shall receive such protection as is accorded under similar circumstances to bona fide third parties whose rights are in conflict with those of the nationals of other Allied and Associated Powers. 6. Nothing in this Annex shall be construed to entitle Bulgaria or its nationals to any patent or utility model rights in the territory of any of the Allied and Associated Powers with respect to inventions, relating to any article listed by name in Annex 111 of the present Treaty, made, or upon which applications were filed, by Bulgaria, or any of its nationals, in Bulgaria or in the territory of any other of the Axis Powers, or in any territory occupied by the Axis forces, during the time when such territory was under the control of the forces or authorities of the Axis Powers. 7. Bulgaria shall likewise extend the benefits of the foregoing provisions of this Annex to France, and to other United Nations which are not Allied or Associated Powers, whose diplomatic relations with Bulgaria have been broken off during the war and which undertake to extend to Bulgaria the benefits accorded to Bulgaria under the said provisions. 8. Nothing in this Annex shall be understood to conflict with Articles 23, 25 and 27 of the present Treaty. ANNEX V. CONTRACTS, PRESCRIPTION AND NEGOTIABLE INSTRUMENTS A. CONTRACTS •I. Any contract which required for its execution intercourse between any of the parties thereto having become enemies as defined in part D of this Annex, shall, subject to the exceptions set out in paragraphs 2 and 3 below, be deemed to have been dissolved as from the time when any of the parties thereto became enemies. Such dissolution, however, is without prejudice to the provisions of Article 27 of the present Treaty, nor shall it relieve any party to the contract from the obligation to repay amounts received as advances or as payments on account and in respect of which such party has not rendered performance in return.