2409717

Information

• Patent Grant
• 2409717

• References
• Source

• Patent Number

  2,409,717

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1946
  78 years ago

• CPC

  • H01J1/304 - Field-emissive cathodes
  • H03B7/10 - active element being gas-discharge or arc-discharge tube

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices