2239303

Information

• Patent Grant
• 2239303

• References
• Source

• Patent Number

  2,239,303

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1941
  83 years ago

• CPC

  • H03B9/01 - using discharge tubes
  • H01J21/065 - Devices for short wave tubes

• US Classifications

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