2374677

Information

• Patent Grant
• 2374677

• References
• Source

• Patent Number

  2,374,677

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1945
  79 years ago

• CPC

  • H01J61/548 - using radioactive means to promote ionisation

• US Classifications

  • 313 - Electric lamp and discharge devices