Up to now, the earliest and most complete trademark found in China-the "white rabbit" figure of Liu Dian in Jinan in the Northern Song Dynasty is the imprint of Liu Dian in Jinan in the Song Dynasty, and its upper text is: "Liu Jia Gong Dian 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 kungfu needles, use them indoors without making mistakes, and resell them for sale. Please remember that there is no extra allowance.