2518121

Information

• Patent Grant
• 2518121

• References
• Source

• Patent Number

  2,518,121

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1950
  74 years ago

• CPC

  • H01J1/20 - Cathodes heated indirectly by an electric current Cathodes heated by electron or ion bombardment
  • H01J21/08 - with movable electrode or electrodes

• US Classifications

  • 313 - Electric lamp and discharge devices