Patents Assigned to Berwick Industrial Co. Limited
  • Mini voice changer
    Patent number: D695259
    Type: Grant
    Filed: May 19, 2013
    Date of Patent: December 10, 2013
    Assignee: Berwick Industrial Co. Limited
    Inventor: Chiu Chan
  • Small voice changer
    Patent number: D709478
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: July 22, 2014
    Assignee: Berwick Industrial Co. Limited
    Inventor: Chiu Chan