2280725

Information

• Patent Grant
• 2280725

• References
• Source

• Patent Number

  2,280,725

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1942
  82 years ago

• CPC

  • G01S11/023 - using impedance elements varying with distance

• US Classifications

  • 324 - Electricity: measuring and testing
  • 318 - Electricity: motive power systems
  • 331 - Oscillators
  • 340 - Communications: electrical