2570323

Information

• Patent Grant
• 2570323

• References
• Source

• Patent Number

  2,570,323

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1951
  73 years ago

• CPC

  • B42F13/26 - and locked when so engaged
  • B42F13/408 - with sheet rests or sheet lifters

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet
  • 281 - Books, strips, and leaves