3899842

Information

• Patent Grant
• 3899842

• References
• Source

• Patent Number

  3,899,842

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  51 years ago

• CPC

  • B42F3/003 - Perforated or punched sheets
  • B42F17/28 - in the form of endless bands or revolving drums
  • Y10S402/501 - Sheet retainer continuous with periphery of sheet notch

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 402 - Binder device releasably engaging aperture or notch of sheet