2233898

Information

• Patent Grant
• 2233898

• References
• Source

• Patent Number

  2,233,898

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1941
  83 years ago

• CPC

  • B42F13/0033 - with two or more filing appliances

• US Classifications

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