3851580

Information

• Patent Grant
• 3851580

• References
• Source

• Patent Number

  3,851,580

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1974
  50 years ago

• CPC

  • G07F7/08 - by coded identity card or credit card or other personal identification means
  • B41L47/46 - using line-contact members
  • G06Q20/4037 - Remote solvency checks
  • G07F7/0833 - Card having specific functional components

• US Classifications

  • 101 - Printing