(3) The office shall issue a certificate of registration of the industrial design and send it by registered mail to the address of the registered owner and if his address is abroad, to his fixed address. (4) The office shall record any change in the address, or in the fixed address, and the owner of the registered industrial design shall notify the office of this change. (5) If there is no provision to the contrary in this Act, correspondence issued in accordance with this Act shall be addressed and sent to the latest recorded address of the registered owner of the industrial design and at the same time to the latest registered fixed address. 21. (1) The office shall publish registered industrial designs in the order of their registration showing all the details mentioned in section 20 (2) provided that the publication shall be in the form and within the period provided for in the rules. (2) It shall be possible to make a search, free of charge, against all industrial designs and all the recorded dealings in relation thereto in the Industrial Designs Office. Any person may have a copy of a design on payment of the prescribed fees and the cost incurred in making copies. 22. (1) An application for registration may require that his lodged industrial design be kept secret for a period not exceeding 12 months from the date of application. In such case the industrial design shall be forwarded in an envelope sealed with red wax. (2) Registration and publication provided for in section 21 shall not contain a copy of the industrial design, but after the opening of the sealed envelope the registration shall be completed by forwarding a copy of the industrial design referred to in section 20 (2) and this copy shall be published with reference to the previous application. (3) In every case, after the expiry of 12 months, the sealed envelope shall be opened automatically, and the applicant or his successor may, at any time, require the transfer of his application from a sealed application to an open application and the sealed envelope may also be opened if a Court so requires, provided that it shall be resealed with wax. (4) An industrial design shall not be protected as provided for in this Act before the opening of the sealed envelope. (5) Details of the aforementioned procedures shall be determined by the rules. Part Six: Term and Renewal of Registration of an Industrial Design