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Trademark registration is a way to protect a trademark. In which category it is registered, the scope of protection is in that category. If it is only registered in 35 categories, others register 44 Class, then the scope of use of this trademark is sales and consignment, and optician services cannot use this brand to do this. On the contrary, only class 44 is registered, and class 35 is not registered, then this trademark can only be used for optician services. trademark. Just like shopping malls and stores in shopping malls, trademark registration must be comprehensive