3805428

Information

• Patent Grant
• 3805428

• References
• Source

• Patent Number

  3,805,428

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • G06K17/0009 - with sequential access selection of a record carrier from the card-file
  • G06K13/14 - Card magazines
  • Y10S402/503 - Binder device, sheet or depository including magnetic material

• US Classifications

  • 353 - Optics: image projectors
  • 402 - Binder device releasably engaging aperture or notch of sheet