The trademark registration number can usually be found on the trademark registration certificate. On the trademark registration certificate, the trademark registration number will generally be located in a specific location:

The trademark registration number will generally be in a specific area at the top or bottom of the trademark registration certificate, marked as "RegistrationNo.", "Reg .No." and other words, followed by the specific trademark registration number.

The format of a trademark registration number may vary by country or region, and generally includes a combination of letters and numbers, such as "12345678". This number is the unique identifier for trademark registration and can be used to confirm the registration status, validity period and other information of the trademark.

If you cannot find the trademark registration certificate, you can also query it through the official website of the relevant trademark registration bureau or trademark database to obtain the trademark registration number and related information.

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