2578177

Information

• Patent Grant
• 2578177

• References
• Source

• Patent Number

  2,578,177

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1951
  73 years ago

• CPC

  • G09B9/245 - Simulation of compasses, gyroscopes

• US Classifications

  • 434 - Education and demonstration
  • 116 - Signals and indicators
  • 340 - Communications: electrical