Patents Assigned to ARDAC/USA
  • Reticle protective structure and radiation sensitive validation apparatus
    Patent number: 4056731
    Abstract: The reticle of a paper currency validating device of the type which uses a radiation sensing system is protected by the provision of a thin sapphire disc covering the reticle.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: November 1, 1977
    Assignee: ARDAC/USA
    Inventor: Jack E. Bayha