Methods of and system for portable cellular phone voice communication and positional location data communication using the cellular phone network control channel

  • US 6,876,858 B1
  • Filed: 01/20/1999
  • Issued: 04/05/2005
  • Est. Priority Date: 01/20/1999
  • ×

    Create Patent Alert


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



    ×

    Thank you for your feedback

    ×
    ×