(b) (4) A design registered under the South African Act shall not apply to the geographical areas of Bophuthatswana, Transkei or Venda for so long as and to the extent that a valid registered design right for the same design continues to subsist in any such geographical area, but shall extend to each such geographical area if and when such valid right no longer subsists. (5) (a) A proprietor of a design registered in Bophuthatswana, Transkei or Venda, respectively, may, within one year after the coming into force of this Act, notify the Registrar of Designs in writing that he or she wishes his or her design right to extend to the whole of the national territory of the Republic, subject to paragraph (b). (b) Once such a notification has been made such design right shall continue to apply only to the geographical areas of Bophuthatswana, Transkei or Venda, as the case may be, for as long as and to the extent that a valid registered design for the same right subsists in terms of the South African Act, but, subject to paragraph (a), such design right shall extend to the whole of the national territory if and when such right in terms of the South African Act does not exist. (6) 9. any notice and other communication required to be inserted or published in a patent journal or other official publications shall be inserted or published in the South African Patent Journal. Any lawful use by any person of a design commenced prior to 27 April 1994 in the geographical area of Bophuthatswana, Transkei or Venda shall not become unlawful by virtue of this Act, provided that the use is not extended outside the geographical area concerned. Design registers and records The Registers of Designs and records shall be transferred to and kept in the office of the Registrar of Designs. 10. Identification of designs All designs registered and all design applications filed in terms of the Bophuthatswana Act, Transkei Act and Venda Act shall be identified by the suffixes '(BT)', '(TR)' and '(VE)', respectively. PART 5 TRADE MARKS (ss 11-14) 11. Application of South African Trade Marks Act (1) Subject to the provisions of this section, the South African Act shall apply to all trade marks registered or deemed to be registered under the Bophuthatswana Act, the Transkei Act and the Venda Act. (2) Subject to subsection (5), the validity of the original entry of a trade mark on the Register of Trade Marks shall be determined in