sign is a sign indicating the characteristics of things. It takes simple, obvious and easily recognizable images, graphics or text symbols as its intuitive language, and besides indicating what to replace, it also has the functions of expressing meaning, emotion and instructing actions.

Trademarks-

Trademarks (in English) refer to a kind of visible signs which are made up of characters, figures, letters, numbers, three-dimensional signs, colors and the combination of the above elements, and are used on commodities and their packages or service marks in order to distinguish their own commodities or services from those of others.

Emblem-

As the symbol of a country's image, the national flag and national emblem have special significance that can't be accurately expressed in any language or writing.

Marks made to distinguish products of different enterprises are purely commercial. For example, marks made for commercial trade, transportation or service industries can all be called trademarks. Second, the emblems of government organizations, schools and associations.