2852275

Information

• Patent Grant
• 2852275

• References
• Source

• Patent Number

  2,852,275

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1958
  66 years ago

• CPC

  • B42F13/0053 - Indexing means on file covers

• US Classifications

  • 281 - Books, strips, and leaves
  • 040 - Card, picture, or sign exhibiting
  • 402 - Binder device releasably engaging aperture or notch of sheet
  • D19 - Office supplies