3671720

Information

• Patent Grant
• 3671720

• References
• Source

• Patent Number

  3,671,720

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  52 years ago

• CPC

  • G07F7/08 - by coded identity card or credit card or other personal identification means
  • G06K7/045 - whereby the entire datafield of the record carriers is simultaneously sensed
  • G06Q20/403 - Solvency checks
  • G07F7/086 - by passive credit-cards adapted therefor
  • G07F7/10 - together with a coded signal
  • G07F7/1066 - PIN data being compared to data on card

• US Classifications

  • 235 - Registers
  • 200 - Electricity: circuit makers and breakers
  • 382 - Image analysis