2461926

Information

• Patent Grant
• 2461926

• References
• Source

• Patent Number

  2,461,926

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1949
  75 years ago

• CPC

  • G09B1/20 - and bearing the symbols on a surface parallel to the axis of rotation

• US Classifications

  • 434 - Education and demonstration
  • D19 - Office supplies