2874486

Information

• Patent Grant
• 2874486

• References
• Source

• Patent Number

  2,874,486

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1959
  66 years ago

• CPC

  • G09B9/245 - Simulation of compasses, gyroscopes

• US Classifications

  • 434 - Education and demonstration
  • 033 - Geometrical instruments