1538314

Information

• Patent Grant
• 1538314

• References
• Source

• Patent Number

  1,538,314

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1925
  99 years ago

• CPC

  • B42F3/00 - Sheets temporarily attached together involving perforations Means therefor Sheet details therefor
  • Y10S24/901 - Penetrating-type paper fastener
  • Y10T24/492 - Distorted structure having shape facilitating impaling

• US Classifications

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