(1)An applicant for registration of a mark who has exhibited goods bearing the mark or rendered services under the mark at an official or officially recognized international exhibition and who applies for registration of the mark within six months from the date on which the goods bearing the mark or services under the mark were first exhibited or services respectively at such exhibition, shall on request, be deemed to have applied for registration of that mark on the date on which the goods bearing the mark or the services rendered under the mark were first exhibited or rendered at such exhibition.