Patents Assigned to Chuhn Chuan Corporation
  • Sprocket wheel
    Patent number: D397966
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: September 8, 1998
    Assignee: Chuhn Chuan Corporation
    Inventor: Wen-Yao Chang
  • Sprocket wheel (2)
    Patent number: D399222
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: October 6, 1998
    Assignee: Chuhn Chuan Corporation
    Inventor: Wen-Yao Chang