1889095

Information

• Patent Grant
• 1889095

• References
• Source

• Patent Number

  1,889,095

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1932
  92 years ago

• CPC

  • B41L3/20 - for facilitating manifolding in books

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet
  • D19 - Office supplies