SECTION 7: COLLECTIVE MARKS Article 156: Common provisions relating to marks The provisions of articles 133 to 153 of this Law related to the mark shall apply to collective marks. Article 157: Specific provisions for collective marks Subject to the provisions of the articles 133 to 153, the application for registration of a collective mark shall indicate that the mark in question is collective and shall be accompanied by a copy of the regulations determining the conditions of use of this collective mark. The owner of the registration of a collective mark shall notify the empowered authority of any amendment made to the requirements of paragraph (1) of this article. Article 158: Invalidation of registration Apart from the cases provided for in article 149 of this Law, the empowered authority shall invalidate the registration of a collective mark, if the person who requests the invalidation proves that only the owner of the registration of the mark uses the mark, or that he uses it or allows it to be used in contravention of the regulations referred to in article 157 (1) of this Law, or that he uses it or allows it to be used in a manner which is likely to deceive those in commercial circles or the public as to the origin or any other feature common to the goods or services under consideration. Article159: Assignment of collective marks Any change in ownership of a registered mark or relating to an application for registration of a mark shall be recorded in writing. The change shall be addressed to the empowered authority in order to: 1° record in the register of marks; and 2° publish a reference of change in ownership. The change in ownership of a registered mark shall be subject to payment of the prescribed fee. A change in ownership of registration of a mark shall be invalid, however, if it is likely to deceive or to create confusion, in particular as regards the nature, origin, manufacturing process, characteristics or suitability for the use for which they are intended, of the goods or services in relation to which the mark is designed to be used or is used. The change in ownership for a registered mark shall have effect in relation to third parties only after recording into the register of marks. The empowered authority may refuse to record an assignment contract when it decides that the contract concerning the right in question contains one or more clauses that are abusive or