2077677

Information

• Patent Grant
• 2077677

• References
• Source

• Patent Number

  2,077,677

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1937
  87 years ago

• CPC

  • B41L3/04 - Bars provided with pins engaging perforations in the elements

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 402 - Binder device releasably engaging aperture or notch of sheet