ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,557,893, issued on Feb. 24, was assigned to SHENZHENSHI NANJIAKEJIXINXI YOUXIANGONGSI (Shenzhen, China).
"Nail drill for easy control" was invented by Jinfang Li (Shenzhen, China) and Xinlang Zhan (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a nail drill for easy control, including a shell assembly, a polish head, a motor assembly, a speed regulating assembly, and a flexible top cover assembly. The speed regulating assembly regulates a rotational speed of the motor assembly and a start or stop of the motor assembly. The flexible top cover assembly is rotatably provided at one end of the shell assembly ...