The national patent symbol obtained by the nobility is

The national patent of Noble Logo is sanitary towel, and Noble Logo is a healthy product, which has three advantages: dustproof, moisture-proof and bacteria-proof, that is, it can be dried immediately after being sucked; secondly, it has good air permeability and is not stuffy in summer; thirdly, the negative ion chip can clean the palace, detoxify, remove odor, diminish inflammation and sterilize.