(1)Save as provided in section 12, a trade mark shall not be registered if, because of—(a)a registered trade mark or an application under section 18 bearing an earlier date of filing or an international registration referred to in section 36E or convention application referred to in section 154 which has a date of application earlier than that of the trade mark in question, taking account, where appropriate, of the priorities claimed in respect of the trade marks;(b)its similarity to an earlier trade mark and the identity or similarity of the goods or services covered by the trade mark, there exists a likelihood of confusion on the part of the public, which includes the likelihood of association with the earlier trade mark.