Patents Assigned to Dong Guan Jia Sheng Lighting Tehcnology Co., Ltd. China
  • Acoustic device
    Patent number: D851066
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: June 11, 2019
    Assignee: Dong Guan Jia Sheng Lighting Tehcnology Co., Ltd. China
    Inventor: Kevin Hsu