2030400

Information

• Patent Grant
• 2030400

• References
• Source

• Patent Number

  2,030,400

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1936
  89 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 333 - Wave transmission lines and networks
  • 346 - Recorders