2672567

Information

• Patent Grant
• 2672567

• References
• Source

• Patent Number

  2,672,567

• Date Filed

  Not available

• Date Issued

  Tuesday, March 16, 1954
  71 years ago

• CPC

  • H01J1/20 - Cathodes heated indirectly by an electric current Cathodes heated by electron or ion bombardment
  • H01J1/24 - Insulating layer or body located between heater and emissive material

• US Classifications

  • 313 - Electric lamp and discharge devices