1644541

Information

• Patent Grant
• 1644541

• References
• Source

• Patent Number

  1,644,541

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1927
  98 years ago

• CPC

  • B42F13/12 - with pillars, posts, rods, or tubes
  • Y10T24/3797 - with permanently deformed mounting structure

• US Classifications

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