2153575

Information

• Patent Grant
• 2153575

• References
• Source

• Patent Number

  2,153,575

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  85 years ago

• CPC

  • B42F13/0093 - Binding devices co-operating with corner or back cut-outs of the stack
  • B42F3/003 - Perforated or punched sheets

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet
  • 040 - Card, picture, or sign exhibiting
  • 281 - Books, strips, and leaves