2154275

Information

• Patent Grant
• 2154275

• References
• Source

• Patent Number

  2,154,275

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  86 years ago

• CPC

  • H01J13/20 - Control electrodes
  • H01J2893/0092 - Anodic screens or grids
  • Y10T403/459 - Helical spring type coupling
  • Y10T403/59 - Manually releaseable latch type

• US Classifications

  • 248 - Supports
  • 219 - Electric heating
  • 267 - Spring devices
  • 313 - Electric lamp and discharge devices
  • 403 - Joints and connections
  • 439 - Electrical connectors