As to whether the trademark "Hao Erhao Mrs." can be used during registration, this involves the relevant provisions of the Trademark Law.

Generally speaking, the trademark does not enjoy exclusive protection until the trademark registration is completed and the trademark registration certificate is obtained. This means that during the trademark registration process, others can also use the same or similar trademark on the same or similar goods/services.

However, there are certain risks in using a trademark that is being registered. If during the trademark registration process or after the registration is completed, you discover that a trademark similar or identical to yours has been registered by others, you may face an infringement dispute or need to readjust your trademark usage strategy.

Therefore, although you can use the "Mrs. Haoerhao" trademark during the trademark registration process, it is recommended that you use it with caution and consult a professional trademark agency or lawyer before officially obtaining the trademark registration certificate. Understand the relevant legal risks and protections.

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