3664051

Information

• Patent Grant
• 3664051

• References
• Source

• Patent Number

  3,664,051

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1972
  52 years ago

• CPC

  • B42F21/065 - for suspension files
  • B42F15/0035 - suspended at both extremities
  • B42F21/00 - Indexing means Indexing tabs or protectors therefor

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • D19 - Office supplies