2066539

Information

• Patent Grant
• 2066539

• References
• Source

• Patent Number

  2,066,539

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1937
  88 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 333 - Wave transmission lines and networks
  • 178 - Telegraphy
  • 200 - Electricity: circuit makers and breakers
  • 324 - Electricity: measuring and testing
  • 346 - Recorders