The trademark registration certificate number can usually be found in the upper right corner or the upper left corner of the trademark registration certificate. For different trademark registration agencies or countries, the specific location may be different. The following are the locations of common trademark registration numbers:

1. Upper right corner: The trademark registration certificate number is usually located in the upper right corner of the trademark registration certificate.

2. Upper left corner: Some trademark registration certificates put the trademark registration certificate number in the upper left corner.

3. Header or footer: The trademark registration certificate number may sometimes be located in the header or footer of the trademark registration certificate.

Please note that the trademark registration number may consist of letters and numbers, and the specific format may vary from country to country. For different trademark registration agencies, the length and style of the trademark registration certificate number may be different.

If you need to find the location of a specific trademark registration number or know the requirements of a specific trademark registration agency, you can refer to the official website of the agency or contact their customer service department to get accurate information.

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