1641936

Information

• Patent Grant
• 1641936

• References
• Source

• Patent Number

  1,641,936

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1927
  97 years ago

• CPC

  • B42F13/08 - of metal
  • Y10T24/495 - Detached cooperating structure

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet
  • 024 - Buckles, buttons, clasps, etc.
  • D19 - Office supplies