2891553

Information

• Patent Grant
• 2891553

• References
• Source

• Patent Number

  2,891,553

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1959
  65 years ago

• CPC

  • B42F13/28 - in two staggered sections

• US Classifications

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