Patents Assigned to TechTronic Co., LTD
  • Keyless drill chuck
    Patent number: D461697
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 20, 2002
    Assignee: TechTronic Co., LTD
    Inventors: Daniel A. Chunn, Meily Siu Mei Chan, Felix Hei Shun Leung