2539985

Information

• Patent Grant
• 2539985

• References
• Source

• Patent Number

  2,539,985

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1951
  74 years ago

• CPC

  • H01J25/16 - with pencil-like electron stream perpendicular to the axis of the resonators

• US Classifications

  • 315 - Electric lamp and discharge devices: systems