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How do I find out which class refers to the product or service that I want to protect?

To find the most suitable class or classes for the product or service you wish to register, you can go to the databases section of the SPTO web page, Trademarks and Trade Names, where you will find an application (CLINMAR) that incorporates the Nice International Classification of Products and Services and the classification shared by the European trademark offices (Harmonised).

This system enables you to view the definitions of the 45 classes of products and services and allows you to perform searches entering key words, offering guidance on the classifications that can be used for each product or service (Nice and harmonised).

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