Rule 10—(1) A person carrying on business in England or Wales in a name other than his own name may, whether or not he is within the jurisdiction, be sued—
(a)in his own name, followed by the words “trading as A.B.”, or
(b)in his business name, followed by the words “(a trading name)”.
(2) Where a person is sued in his business name in accordance with paragraph (1)(b), the provisions of these rules relating to claims against firms shall, subject to the provisions of any enactment, apply as if he were a partner and the name in which he carried on business were the name of his firm.