documents and on the register and the Registrar shall act accordingly. (2) Any party to any proceedings under the Act who alters his address or address for service shall forthwith(a) apply to the Registrar on Form TM2 to record such alteration on the notice of opposition or other documents or the register, and the Registrar shall act accordingly; and (b) give notice of such alteration to every other person who is a party to the proceedings. 9. Agents [Section 8] (1) All communications to the Registrar relating to trade marks or trade mark applications may be signed by and all attendances upon the Registrar may be made by or through an agent practising in the Republic and duly authorised to the satisfaction of the Registrar. In any particular case the Registrar may, if he thinks fit, require the personal signature of an applicant, objector or other person. (2) Service upon such agent shall be deemed to be service upon the person so appointing him and all communications directed to be made to such person may be addressed to such agent. (3) Where the address of an agent has been used as the address for service in respect of any entry in the register and such agent changes his address, he shall forthwith apply to the registrar on Form TM2 for the form of advertisement of the change of address for publication in the Patent Journal. 10. Unregistrable marks [Section 10(8) - (10)] (1) Subject to the provisions of any other law, the Registrar may refuse to accept any application upon which any of the following appear: (a) The words ‘patent’, ‘patented’, ‘by letters patent’, ‘registered’, ‘registered trade mark’, ‘registered design’, ‘copyright’, ‘certified’, ‘guaranteed’ or words to like effect; and (b) the letters ‘(r)’, ‘(c)’ or similar combinations which may be construed to import a reference to registration. (2) Where a representation of arms, insignia, a decoration or a flag appears on a mark, the Registrar may call for such justification, including such 8