3145326

Information

• Patent Grant
• 3145326

• References
• Source

• Patent Number

  3,145,326

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1964
  60 years ago

• CPC

  • B42F11/04 - magnetic
  • Y10S281/01 - Magnet
  • Y10S402/503 - Binder device, sheet or depository including magnetic material

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 040 - Card, picture, or sign exhibiting
  • 211 - Supports: racks
  • 281 - Books, strips, and leaves
  • 402 - Binder device releasably engaging aperture or notch of sheet