ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,439, issued on Sept. 23, was assigned to Ruian Daer Beauty Appliance Factory (Rui'an, China).
"Nose hair trimmer head" was invented by Suo Li (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nose hair trimmer head includes a trimmer head shell, a trimmer head cover and a moving blade component, wherein the moving blade component includes a blade holder, a blade and a first spring piece. The first spring piece is arranged in the sliding groove of the blade holder. Both ends of the first spring piece are respectively in contact with the two blades to push the blade edges of the two blades to respectively abut against the inner side w...