Trademarks are not universal. Trademarks refer to the brands of products or services. The ones you mentioned are identification systems. They are different everywhere. One unit in this city does the same thing. Some may It’s the same. Like the Olympics, it has its own special logo system, and each exhibition will have its own logo system. Unless it is a very low-level ordinary exhibition, it will use the more commonly used logo system on the street, so the logo is the same as the trademark. They are two completely different concepts, and the logos vary from city to city and country to country, and are not universally applicable. Trademarks are not universal across the country, and trademark registrations are registered on a country-by-country basis.