2976871

Information

• Patent Grant
• 2976871

• References
• Source

• Patent Number

  2,976,871

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1961
  64 years ago

• CPC

  • B42F13/28 - in two staggered sections

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet