2186545

Information

• Patent Grant
• 2186545

• References
• Source

• Patent Number

  2,186,545

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1940
  85 years ago

• CPC

  • F41G9/025 - Training or teaching apparatus therefor

• US Classifications

  • 434 - Education and demonstration
  • 033 - Geometrical instruments
  • 244 - Aeronautics and astronautics