2911977

Information

• Patent Grant
• 2911977

• References
• Source

• Patent Number

  2,911,977

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1959
  65 years ago

• CPC

  • B42F13/08 - of metal

• US Classifications

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