3890599

Information

• Patent Grant
• 3890599

• References
• Source

• Patent Number

  3,890,599

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • G07F7/08 - by coded identity card or credit card or other personal identification means
  • G07B11/11 - for cancelling tickets
  • G07D7/004 - using digital security elements
  • G07D7/20 - Testing patterns thereon
  • G07F7/12 - Card verification
  • G07F17/42 - for ticket printing or like apparatus

• US Classifications

  • 340 - Communications: electrical