"EM" is the abbreviation or abbreviation of "European Community". This abbreviation is not commonly used. The more commonly used abbreviation is "EC", which is what we often call "European Community" ” or “European Community” or “European Common Market”.

Definition of international trademark registration:

There are two ways for applicants to apply for registered trademarks abroad: one is to register country by country, that is, apply to the trademark authorities of each country for registration; The first is the Madrid international registration of trademarks, that is, in accordance with the provisions of the Madrid Agreement on the International Registration of Marks (hereinafter referred to as the "Madrid Agreement") or the Protocol Relevant to the Madrid Agreement on the International Registration of Marks (hereinafter referred to as the "Madrid Protocol"), in the member states of the Madrid Union Trademark registration carried out during the period. What we usually call international trademark registration refers to Madrid international trademark registration.