1901980

Information

• Patent Grant
• 1901980

• References
• Source

• Patent Number

  1,901,980

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1933
  91 years ago

• CPC

  • B42D5/008 - with means for engaging sheet perforations or slots
  • B42D5/005 - Supports for note-pads
  • Y10T225/224 - With means to hold pad or stack of individual sheets

• US Classifications

  • 281 - Books, strips, and leaves
  • 225 - Severing by tearing or breaking
  • 248 - Supports
  • 402 - Binder device releasably engaging aperture or notch of sheet