3030495

Information

• Patent Grant
• 3030495

• References
• Source

• Patent Number

  3,030,495

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1962
  63 years ago

• CPC

  • H01J40/06 - Photo-emissive cathodes
  • B23K9/0672 - without direct contact between electrodes
  • H01J9/12 - of photo-emissive cathodes of secondary-emission electrodes

• US Classifications

  • 219 - Electric heating
  • 315 - Electric lamp and discharge devices: systems