Patents Assigned to Rubicon Co., Ltd.
  • Ratchet screwdriver
    Patent number: 4799407
    Abstract: A ratchet screwdriver comprising a bit attaching section, an operating section body which turns the bit attaching section in one direction only, a handle section which is connected to the operating section body on a turning axis, and an auxiliary handle which is inserted into the operating section body for turning control of the screwdriver, and in which the handle section is freely rotatable in relation to the operating section body when the auxiliary handle is inserted into the operating section body and operated.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: January 24, 1989
    Assignee: Rubicon Co., Ltd.
    Inventor: Yoshikazu Miyamoto