Explanation IX "Brand name" or "trade name" shall mean a brand name or trade name,whether registered or not,that is to say a name or a mark,such as symbol,monogram,label,signature or invented word or writing which is used in relation to such specified goods for the purpose of indicating,or so as to indicate a connection in the course of trade between such specified goods and some person using such name or mark with or without any indication of the identity of that person