Up to now, China has found the earliest trademark with the most complete pattern-the "White Rabbit" pattern of Liu Jiazhen Shop in Jinan in the Northern Song Dynasty, which is the mark of Liu Jiazhen Shop in Jinan in the Song Dynasty, and its upper text is: "Liu Jiagong Shop in Jinan"; The middle text is:' recognize the white rabbit in front of the door as a record'; The text at the bottom reads:' Buy superior steel bars, make fine needles for kung fu, and use them in the house without mistake, and resell them for sale. Please remember that there is no extra allowance'.