3833308

Information

• Patent Grant
• 3833308

• References
• Source

• Patent Number

  3,833,308

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1974
  50 years ago

• CPC

  • B42F13/18 - on two bars relatively movable longitudinally

• US Classifications

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