2213384

Information

• Patent Grant
• 2213384

• References
• Source

• Patent Number

  2,213,384

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1940
  85 years ago

• CPC

  • H02J13/0044 - using DC signal superposition
  • Y10T307/944 - Power circuit controlled

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 340 - Communications: electrical