Patents Assigned to KEF Electronics Limited
  • Patent number: 4139734
    Abstract: The present invention provides a loudspeaker comprising a plurality of enclosures each provided with a loudspeaker drive unit connected to an input, at least one of the enclosures being pivotally mounted with respect to another of the enclosures, said at least one enclosure being provided with means defining an aperture and a light emitting device, the means defining aperture being shaped and the light emitting device being positioned with respect to said aperture defining means whereby the device will be visible only when a listener is in the correct position.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: February 13, 1979
    Assignee: KEF Electronics Limited
    Inventor: Lawrence R. Fincham