2418421

Information

• Patent Grant
• 2418421

• References
• Source

• Patent Number

  2,418,421

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1947
  77 years ago

• CPC

  • B42F5/06 - Corner-holding devices
  • Y10T24/208 - Corner fastened

• US Classifications

  • 033 - Geometrical instruments
  • 024 - Buckles, buttons, clasps, etc.
  • 229 - Envelopes, wrappers, and paperboard boxes