2539069

Information

• Patent Grant
• 2539069

• References
• Source

• Patent Number

  2,539,069

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1951
  73 years ago

• CPC

  • B42D3/008 - applied on the back of book covers
  • B42F13/006 - applied on the back of file covers
  • B42F13/40 - combined or formed with other articles

• US Classifications

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