3670646

Information

• Patent Grant
• 3670646

• References
• Source

• Patent Number

  3,670,646

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  52 years ago

• CPC

  • B41F27/02 - Magnetic devices
  • Y10S402/503 - Binder device, sheet or depository including magnetic material
  • Y10T24/32 - having magnetic fastener

• US Classifications

  • 101 - Printing
  • 024 - Buckles, buttons, clasps, etc.
  • 402 - Binder device releasably engaging aperture or notch of sheet