Patents Assigned to Beijing Jingheng Tengwei Kejian Trading Co., Ltd.
  • Keyboard
    Patent number: D864203
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: October 22, 2019
    Assignee: Beijing Jingheng Tengwei Kejian Trading Co., Ltd.
    Inventor: Jin Zhang
  • Keyboard
    Patent number: D925533
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: July 20, 2021
    Assignee: Beijing Jingheng Tengwei Kejian Trading Co., Ltd.
    Inventor: Jin Zhang