2512538

Information

• Patent Grant
• 2512538

• References
• Source

• Patent Number

  2,512,538

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1950
  74 years ago

• CPC

  • H01J17/54 - having one or more control electrodes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices