2801369

Information

• Patent Grant
• 2801369

• References
• Source

• Patent Number

  2,801,369

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1957
  67 years ago

• CPC

  • H04Q3/525 - using tubes in the switching stages

• US Classifications

  • 315 - Electric lamp and discharge devices: systems