To check the cosmetics trademark registration number, you can follow the steps below:

1. Open the official website of the Trademark Office of your country or region.

2. Enter "trademark registration number query" or similar keywords in the search box of the website.

3. Enter the trademark registration number query page and enter relevant information, such as trademark name, applicant name, etc.

4. Click the search or query button, and the system will query based on the information you provide.

5. The query results will display the relevant trademark registration number and trademark information. You can confirm the registration status of the cosmetics trademark through the trademark registration number.

It should be noted that the trademark registration number query system may be different in each country or region, and the specific operations and query methods may be different. It is recommended that you visit the official website of the local Trademark Office to find relevant query tools or guides to obtain accurate methods for querying cosmetics trademark registration numbers.

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