Patents Assigned to Toi Shan Wah Yat Hardware Co., Ltd.
  • Combination padlock
    Patent number: D434635
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: December 5, 2000
    Assignee: Toi Shan Wah Yat Hardware Co., Ltd.
    Inventor: Jiaqiang Ruan