Patents by Inventor Bernard Nathan Woolf

Bernard Nathan Woolf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3982828
    Abstract: Eye testing apparatus including a control unit having a control display panel having a number of distributed electrical lights adapted to be illuminated; and electrical connection means for connecting the control unit to a source of electrical energy; a remote scanner unit adapted to be electrically connected to the control unit, and including a scanner display panel provided with electrical lights, positioned corresponding to the lights on the control display panel, and which are adapted to be illuminated corresponding to the illumination of the lights on the control display panel, the scanner display panel also having a fixing light; and operation means for causing any one or more lights on the control display panel and the corresponding light or lights on the scanner display panel to be illuminated for observation by a person viewing the scanner display panel.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: September 28, 1976
    Assignee: South African Inventions Development Corporation
    Inventor: Bernard Nathan Woolf