2024172

Information

• Patent Grant
• 2024172

• References
• Source

• Patent Number

  2,024,172

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1935
  89 years ago

• CPC

  • H01J13/20 - Control electrodes
  • H01J2893/0092 - Anodic screens or grids

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 174 - Electricity: conductors and insulators