1394325

Information

• Patent Grant
• 1394325

• References
• Source

• Patent Number

  1,394,325

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1921
  103 years ago

• CPC

  • H02M5/20 - using discharge tubes without control electrode or semiconductor devices without control electrode

• US Classifications

  • 363 - Electric power conversion systems