3652894

Information

• Patent Grant
• 3652894

• References
• Source

• Patent Number

  3,652,894

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1972
  52 years ago

• CPC

  • H01J1/28 - Dispenser-type cathodes
  • H01J1/24 - Insulating layer or body located between heater and emissive material

• US Classifications

  • 313 - Electric lamp and discharge devices