1871959

Information

• Patent Grant
• 1871959

• References
• Source

• Patent Number

  1,871,959

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1932
  92 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 333 - Wave transmission lines and networks
  • 323 - Electricity: power supply or regulation systems
  • 330 - Amplifiers