2144865

Information

• Patent Grant
• 2144865

• References
• Source

• Patent Number

  2,144,865

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1939
  86 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 333 - Wave transmission lines and networks
  • 318 - Electricity: motive power systems
  • 330 - Amplifiers