ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,734, issued on Jan. 27, was assigned to Mechtron (Shanghai) Intelligent Technology Co. Ltd. (Shanghai).
"Electric drill" was invented by Guanxiong Lu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an electric drill, which includes a housing. The housing is provided with a motor, a drill bit quick connector and a battery module therein. One end of the drill bit quick connector is drivingly connected to an output end of the motor, and the other end is used for detachable connection with an external drill bit. The battery module is detachably assembled in the housing and configured to supply power to the motor. The drill bit quick...