Merchant number generally refers to the name of the merchant, such as Tong Ren Tang. In addition, you can also refer to the registration of merchants by relevant departments or the identification numbers of merchants in shopping malls.

There were no trademarks in ancient times, and the names of businessmen were just like people's names. Of course, some enterprises now register a trade name as a trademark for the benefit of the insured, and the trade name and trademark will be the same, but usually the names of shops on the street are trade names without registered trademarks.