3641632

Information

• Patent Grant
• 3641632

• References
• Source

• Patent Number

  3,641,632

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • B42F13/08 - of metal
  • Y10T24/497 - including plural impaling elements

• US Classifications

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