1942317

Information

• Patent Grant
• 1942317

• References
• Source

• Patent Number

  1,942,317

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1934
  90 years ago

• CPC

  • H01J13/04 - Main electrodes Auxiliary anodes
  • H01J2893/0089 - Electrode systems

• US Classifications

  • 313 - Electric lamp and discharge devices