Patents Assigned to SHENZHEN SHUANGLONGFEI TECHNOLOGY CO., LTD.
  • Wireless headset
    Patent number: D897321
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: September 29, 2020
    Assignee: SHENZHEN SHUANGLONGFEI TECHNOLOGY CO., LTD.
    Inventor: Weicai Wei