14 CAP. 400] Patents cation or within such period as may be prescribed after the lodging of that application. . (As amended by No. 36 of 1960 and G.N. No. 185 of 1964) Special provisions as to vessels. aircraft and land vehicles 9. (1) Where a vessel or aircraft registered in a convention coun­ try or a land vehicle owned by a person ordinarily resident in such a country comes into Zambia temporarily or accidentally only, the rights conferred by a patent for an invention shall not be deemed to be infringed by the use of the invention­ (a) in the body of the vessel or in the machinery, tackle, appa­ ratus or other accessories thereof, so far as the invention is used on board the vessel and for its actual needs only; or (b) in the construction or working of the aircraft or land vehi­ cle or of the accessories thereof; as the case may be. Cap. 444 (2) This section shall not affect the provisions of section sixteen of the Aviation Act (which exempts certain aircraft from seizure on patent claims). (As amended by G.N. No. 185 of 1964) Protection of inventions communicated under interna­ tional agree­ ments 10. (1) Subject to the provisions of this section, the Minister may, by statutory instrument, make regulations for securing that, where an invention has been communicated in accordance with any agreement or arrangement made by or on behalf of the Government with the government of any country for the supply or mutual exchange of information or articles­ (a) an application for a patent for an invention so communi­ cated made by a person, his legal representative or assignee, entitled under section eleven to make such appli­ cation, shall not be prejudiced, and a patent granted on such an application shall not be invalidated by reason only that the invention has been communicated as aforesaid or that in consequence thereof­ (i) the invention has been published, made, used, exer­ cised or vended; or (ii) an application for a patent has been made by any ·other person, or a patent has been granted on such an application; (b) any application for a patent made in consequence of such a communication as aforesaid by a person who is not entitled so to do under section eleven may be refused and any patent granted on such an application may be revoked. (2) Regulations made under subsection (1) may provide that the publication, making, use, exercise or vending of an invention or the