1917016

Information

• Patent Grant
• 1917016

• References
• Source

• Patent Number

  1,917,016

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1933
  91 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 178 - Telegraphy
  • 333 - Wave transmission lines and networks