2298904

Information

• Patent Grant
• 2298904

• References
• Source

• Patent Number

  2,298,904

• Date Filed

  Not available

• Date Issued

  Tuesday, October 13, 1942
  82 years ago

• CPC

  • H01J61/542 - and an auxiliary electrode inside the vessel

• US Classifications

  • 315 - Electric lamp and discharge devices: systems