2467051

Information

• Patent Grant
• 2467051

• References
• Source

• Patent Number

  2,467,051

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1949
  75 years ago

• CPC

  • G09B1/24 - the elements being in flexible strip form

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 434 - Education and demonstration