2210816

Information

• Patent Grant
• 2210816

• References
• Source

• Patent Number

  2,210,816

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1940
  84 years ago

• CPC

  • H01J13/06 - Cathodes
  • H01J13/48 - Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
  • H01J2893/0075 - Cathodic cups

• US Classifications

  • 313 - Electric lamp and discharge devices