Legal analysis: The trademark applied for registration should have distinctive features and be easy to identify, and should not conflict with the legal rights previously obtained by others. The trademark registrant has the right to indicate "registered trademark" or registered mark. The following situations are stipulated in Article 60 of the Trademark Law that can prove that the goods were obtained legally by oneself: (1) There is a supply list and payment receipt legally signed and sealed by the supplier, and they are verified to be true or recognized by the supplier; (2) There is a purchase contract signed by both the supplier and the seller and it has been verified to have been truly performed; (3) There is a legal purchase invoice and the items recorded on the invoice correspond to the goods involved; (4) Other circumstances that can prove that the goods involved were obtained legally.

Legal basis: "Regulations on the Implementation of the Trademark Law of the People's Republic of China" Article 79 The following circumstances are circumstances that can be proved to have obtained the goods legally according to Article 60 of the Trademark Law: (1) There is a supply list and payment receipt legally signed and stamped by the supplier, which have been verified to be true or recognized by the supplier; (2) There is a purchase contract signed by both the supplier and the seller, and it has been verified that it has been truly fulfilled; (3) There is Legal purchase invoices and the items recorded on the invoices correspond to the goods involved; (4) Other circumstances that can prove the legal acquisition of the goods involved.