The trademark registration number can be viewed in the following ways:

1. Trademark registration certificate: The trademark registration certificate is a certification document issued by the Trademark Office after successful trademark registration. The trademark registration number is usually indicated on the trademark registration certificate. You can check the relevant information on the trademark registration certificate, including the trademark registration number.

2. The official website of the Trademark Office: Trademark offices in many countries or regions provide online query systems. You can query the trademark registration number through the official website of the Trademark Office. Usually, you can enter the trademark name or applicant name in the search bar of the website, and the system will display relevant trademark information, including the trademark registration number.

3. Trademark database: Some commercial websites or trademark database providers also provide trademark registration number query services. You can use the search functions of these trademark databases and enter the trademark name or other relevant information into the database to find and obtain the trademark registration number.

It should be noted that the trademark registration number is a number that uniquely identifies the trademark registration. The format of the trademark registration number may be different in each country or region. You can choose a suitable method to query the trademark registration number according to the trademark regulations of the specific country or region and the requirements of the Trademark Office.

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