3684390

Information

• Patent Grant
• 3684390

• References
• Source

• Patent Number

  3,684,390

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1972
  52 years ago

• CPC

  • B42F9/00 - Filing appliances with devices clamping file edges Covers with clamping backs
  • Y10S402/501 - Sheet retainer continuous with periphery of sheet notch

• US Classifications

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