2119377

Information

• Patent Grant
• 2119377

• References
• Source

• Patent Number

  2,119,377

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1938
  86 years ago

• CPC

  • H02M5/447 - using discharge tubes only

• US Classifications

  • 307 - Electrical transmission or interconnection systems