. "Alteration or correction of name, address or address for service 56.???(1) A request by any person, upon the alteration of his name, for that alteration to be entered in the register or on any application or other document filed at the Registry shall be made on Patents Form 23. (2) Before acting on a request to alter a name, the Registrar may require such proof of the alteration as he thinks fit." . . . .