Patents Assigned to MBI, Co., Ltd.
  • Automatic speed changing device
    Patent number: 7351180
    Abstract: Disclosed is an automatic speed changing device in which speed is automatically changed according to a predetermined amount of rotation without user's arbitrary manipulations.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: April 1, 2008
    Assignee: MBI, Co., Ltd.
    Inventor: Moon-Soo Yoo