Method and apparatus for utilizing a cellular telephone in a programmable, intelligent emergency freeway callbox

  • US 5,016,269 A
  • Filed: 11/04/1988
  • Issued: 05/14/1991
  • Est. Priority Date: 11/04/1988
  • ×

    Create Patent Alert


    *Certain alert events are not available for your current subscription level. Upgrade
  • Save
    ×



    ×

    Thank you for your feedback

    ×
    ×