Patents Assigned to TypeRight Keyboard Corp.
  • Membrane keyboard and method of using same
    Patent number: 5212473
    Abstract: A membrane keyboard producing audible and tactile responses when individual character keys are depressed. To facilitate typing efficiency, the keyboard has membrane characters keys with different transverse heights and adjustable sensory responses.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: May 18, 1993
    Assignee: TypeRight Keyboard Corp.
    Inventor: William M. Louis