Patents Assigned to SHENZHEN SHENGLAN ELECTRONIC INDUSTRY CO., LTD.
  • Earphone
    Patent number: D840972
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: February 19, 2019
    Assignee: SHENZHEN SHENGLAN ELECTRONIC INDUSTRY CO., LTD.
    Inventor: Zaizhou Luo