3808710

Information

• Patent Grant
• 3808710

• References
• Source

• Patent Number

  3,808,710

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • G09F5/04 - Cards of samples Books of samples
  • G09F2005/041 - Back covers for books of samples

• US Classifications

  • 434 - Education and demonstration
  • 211 - Supports: racks