ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,064, issued on Jan. 27, was assigned to SHENZHEN YANGWO ELECTRONIC Co. LTD. (Shenzhen, China).
"Water-pumping device and hairdressing device" was invented by Dejin Duan (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a water-pumping device and a hairdressing device. The water-pumping device is connected to a liquid storage device to deliver liquid in the liquid storage device, and includes a chamber for containing the liquid and a squeezing device. Two ends of the chamber are communicated with a first water delivery channel and a second water delivery channel respectively, the first water delivery chann...