3662339

Information

• Patent Grant
• 3662339

• References
• Source

• Patent Number

  3,662,339

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • G07F7/08 - by coded identity card or credit card or other personal identification means
  • G06Q20/4033 - Local solvency checks
  • G11B3/008 - for digital information
  • G11B3/095 - for repeating a part of the record for beginning or stopping at a desired point of the record
  • G11B3/36 - Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves
  • G11B17/005 - Programmed access to indexed parts of tracks of operating discs, by guiding the disc

• US Classifications

  • 340 - Communications: electrical
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER