Patents by Inventor David Zebrowski

David Zebrowski 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).

  • Lottery number selector
    Patent number: 4669732
    Abstract: A lottery number selector is provided and consists of a set of numbered cards so that a series of numbers can be selected at random for a state lottery drawing. A dispenser device can be used to hold at least one set of randomly mixed numbered cards so that a person can remove the top cards one at a time. The dispenser device is rotatable about its base and has a mechanism for recording the numbers selected when each card is removed.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: June 2, 1987
    Inventors: David Zebrowski, George Spector