20. Agency.- (1) The authorisation of an agent for the purpose of Section 76 shall be executed on Form GI-10 or in such other written form as the Registrar may deem sufficient and proper. (2) In the case of such authorisation, service upon the agent of any document relating to the proceeding or matter shall be deemed to be service upon the person so authorising him; all communications directed to be made to such person in respect of the proceeding or matter may be addressed to such agent, and all appearances before Registrar relating thereto may be made by or through such agent. (3) In any particular case the Registrar may require the personal signature or presence of an applicant, opponent, proprietor, authorised user or other person. |