2192349

Information

• Patent Grant
• 2192349

• References
• Source

• Patent Number

  2,192,349

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1940
  84 years ago

• CPC

  • H01J13/06 - Cathodes
  • H01J13/12 - Positioning or moving the cathode spot on the surface of the pool
  • H01J2893/0075 - Cathodic cups

• US Classifications

  • 313 - Electric lamp and discharge devices