Brush deer head trademark design suspected of plagiarism. The logo of deer head used by Buick is exactly the same as the trademark of a third-class hospital, which constitutes an infringement on the hospital. The court applied for the right to use the trademark "Lutou" through judicial procedures, and finally won the case and obtained the exclusive right. Therefore, Buick is required to stop using trademarks and cancel the official brush deer head. Buick is an automobile brand sold by General Motors in the United States, Canada and China.