Patents Assigned to Shenzhen Kai Ju Yuan Technology Co. Ltd
  • Headphone
    Patent number: D673518
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: January 1, 2013
    Assignee: Shenzhen Kai Ju Yuan Technology Co. Ltd
    Inventor: Chao Tan
  • Headphone
    Patent number: D673519
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: January 1, 2013
    Assignee: Shenzhen Kai Ju Yuan Technology Co. Ltd
    Inventor: Chao Tan