3335510

Information

• Patent Grant
• 3335510

• References
• Source

• Patent Number

  3,335,510

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1967
  57 years ago

• CPC

  • B42D3/008 - applied on the back of book covers

• US Classifications

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