before or after the acts in respect of which the authority is given are done, and may be given to any person, whether or not he is authorised directly or indirectly by the registered proprietor to use the design. (5) Where any use of a design is made by a Government department or any person authorised by the Minister under this section, then, unless it appears to the Minister that it would be contrary to the public interest so to do, the Minister shall notify the registered proprietor as soon as practicable after the use is begun, and furnish him with such information as to the extent of the use as he may from time to time require. (6) For the purposes of this Part, any use of a design for the supply to the government of any country outside Zambia, in pursuance of any agreement or arrangement between the Government and the government of that country, of articles required for the defence of that country shall be deemed to be a use of the design for the services of the State, and the power of a Government department or a person authorised by the Minister under this section to use a design shall include power(a) to sell such articles to the government of any country in pursuance of any such agreement or arrangement as aforesaid; and (b) to sell to any person any articles made in the exercise of the powers conferred by this section which are no longer required for the purpose for which they were made. (7) The purchaser of any articles sold in the exercise of powers conferred by this section, and any person claiming through him, shall have power to deal with them in the same manner as if the rights in the registered design were held on behalf of the State. (As amended by G.N. No. 187 of 1964 , S.I. No. 175 of 1965 and Act No. 16 of 1980) 19. (1) In this section, "exclusive licence" means a licence from a registered proprietor which confers on the licensee or on the licensee and persons authorised by him, to the exclusion of all other persons (including the registered proprietor), any right in respect of the registered design. (2) In relation to any use of a registered design, or a design in respect of Rights of third parties in respect of State use